diff --git a/.gitignore b/.gitignore
index 844d3487..1ee2a966 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,11 +1,13 @@
 /.bundle
 /config/travis.yml
 /tmp
-/public/scripts
-/public/styles
-/public/version
 .sass-cache
 .localeapp/key
 /assets/scripts/config/locales.js
 .DS_Store
-/public/images/emoji
+
+/public/images
+/public/scripts
+/public/styles/app.css
+/public/version
+
diff --git a/Gemfile b/Gemfile
index 4110a159..97e08ac6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,6 @@ ruby '2.1.2'
 gem 'puma'
 gem 'rack-ssl', '~> 1.3'
 gem 'rack-protection', '~> 1.3'
-gem 'rack-cache'
 gem 'rack-mobile-detect'
 gem 'sinatra'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 0ee3859c..ca61857b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -60,8 +60,6 @@ GEM
     puma (2.6.0)
       rack (>= 1.1, < 2.0)
     rack (1.5.2)
-    rack-cache (1.2)
-      rack (>= 0.4)
     rack-mobile-detect (0.4.0)
       rack
     rack-protection (1.3.2)
@@ -114,7 +112,6 @@ DEPENDENCIES
   guard
   libv8 (~> 3.16.0)
   puma
-  rack-cache
   rack-mobile-detect
   rack-protection (~> 1.3)
   rack-ssl (~> 1.3)
diff --git a/public/images/emoji/0.png b/assets/images/emoji/0.png
similarity index 100%
rename from public/images/emoji/0.png
rename to assets/images/emoji/0.png
diff --git a/public/images/emoji/1.png b/assets/images/emoji/1.png
similarity index 100%
rename from public/images/emoji/1.png
rename to assets/images/emoji/1.png
diff --git a/public/images/emoji/109.png b/assets/images/emoji/109.png
similarity index 100%
rename from public/images/emoji/109.png
rename to assets/images/emoji/109.png
diff --git a/public/images/emoji/2.png b/assets/images/emoji/2.png
similarity index 100%
rename from public/images/emoji/2.png
rename to assets/images/emoji/2.png
diff --git a/public/images/emoji/3.png b/assets/images/emoji/3.png
similarity index 100%
rename from public/images/emoji/3.png
rename to assets/images/emoji/3.png
diff --git a/public/images/emoji/4.png b/assets/images/emoji/4.png
similarity index 100%
rename from public/images/emoji/4.png
rename to assets/images/emoji/4.png
diff --git a/public/images/emoji/5.png b/assets/images/emoji/5.png
similarity index 100%
rename from public/images/emoji/5.png
rename to assets/images/emoji/5.png
diff --git a/public/images/emoji/6.png b/assets/images/emoji/6.png
similarity index 100%
rename from public/images/emoji/6.png
rename to assets/images/emoji/6.png
diff --git a/public/images/emoji/7.png b/assets/images/emoji/7.png
similarity index 100%
rename from public/images/emoji/7.png
rename to assets/images/emoji/7.png
diff --git a/public/images/emoji/8.png b/assets/images/emoji/8.png
similarity index 100%
rename from public/images/emoji/8.png
rename to assets/images/emoji/8.png
diff --git a/public/images/emoji/9.png b/assets/images/emoji/9.png
similarity index 100%
rename from public/images/emoji/9.png
rename to assets/images/emoji/9.png
diff --git a/public/images/emoji/wink2.png b/assets/images/emoji/wink2.png
similarity index 100%
rename from public/images/emoji/wink2.png
rename to assets/images/emoji/wink2.png
diff --git a/public/images/getting-started/build-email-03.png b/assets/images/getting-started/build-email-03.png
similarity index 100%
rename from public/images/getting-started/build-email-03.png
rename to assets/images/getting-started/build-email-03.png
diff --git a/public/images/getting-started/first-build.jpg b/assets/images/getting-started/first-build.jpg
similarity index 100%
rename from public/images/getting-started/first-build.jpg
rename to assets/images/getting-started/first-build.jpg
diff --git a/public/images/getting-started/new-project.jpg b/assets/images/getting-started/new-project.jpg
similarity index 100%
rename from public/images/getting-started/new-project.jpg
rename to assets/images/getting-started/new-project.jpg
diff --git a/public/images/getting-started/project_switch.png b/assets/images/getting-started/project_switch.png
similarity index 100%
rename from public/images/getting-started/project_switch.png
rename to assets/images/getting-started/project_switch.png
diff --git a/assets/images/icons/align-justify.png b/assets/images/icons/align-justify.png
deleted file mode 100755
index 96bfc24b..00000000
Binary files a/assets/images/icons/align-justify.png and /dev/null differ
diff --git a/assets/images/icons/code-climate-icon.png b/assets/images/icons/code-climate-icon.png
deleted file mode 100644
index 4d547a94..00000000
Binary files a/assets/images/icons/code-climate-icon.png and /dev/null differ
diff --git a/assets/images/icons/code-climate-icon.svg b/assets/images/icons/code-climate-icon.svg
new file mode 100644
index 00000000..90e36dc6
--- /dev/null
+++ b/assets/images/icons/code-climate-icon.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="40" width="40">
+<polygon points="118.67,106.61,127.6,97.68,152.94,123.02,166.04,109.91,127.6,71.472,105.57,93.505" fill="#000" transform="matrix(0.32751845,0,0,0.34056255,-15.380835,-16.340687)"/>
+<polygon points="55.18,117.8,50.015,122.97,63.12,136.07,68.282,130.9,85.151,114.04,88.455,110.73,101.5,123.78,113.79,136.07,126.89,122.96,114.6,110.68,101.5,97.572,88.455,84.526" fill="#000" transform="matrix(0.32751845,0,0,0.34056255,-15.380835,-16.340687)"/>
+</svg>
+
diff --git a/assets/images/icons/code-climate-logo.png b/assets/images/icons/code-climate-logo.png
deleted file mode 100644
index 4c739e45..00000000
Binary files a/assets/images/icons/code-climate-logo.png and /dev/null differ
diff --git a/assets/images/icons/code-climate-logo.svg b/assets/images/icons/code-climate-logo.svg
new file mode 100644
index 00000000..21097f6f
--- /dev/null
+++ b/assets/images/icons/code-climate-logo.svg
@@ -0,0 +1,18 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="68" width="300">
+<g transform="matrix(0.58902097,0,0,0.58902097,-26.208927,-183.43385)">
+<path d="m203.89,353.54c5.093,0,8.862,1.579,12.325,4.736,0.459,0.408,0.459,1.019,0.051,1.426l-3.973,4.125c-0.357,0.357-0.917,0.357-1.273,0-1.884-1.68-4.379-2.597-6.875-2.597-5.756,0-9.983,4.787-9.983,10.492,0,5.653,4.278,10.339,10.033,10.339,2.393,0,4.991-0.866,6.824-2.445,0.357-0.306,1.019-0.306,1.324,0.051l3.973,4.227c0.357,0.357,0.306,1.019-0.051,1.376-3.463,3.361-7.843,4.94-12.376,4.94-10.186,0-18.386-8.098-18.386-18.283s8.202-18.387,18.387-18.387z"/>
+<path d="m237.91,353.54c10.186,0,18.334,8.2,18.334,18.386s-8.148,18.283-18.334,18.283-18.284-8.098-18.284-18.283,8.099-18.386,18.284-18.386zm0,28.521c5.602,0,10.186-4.584,10.186-10.135,0-5.602-4.584-10.237-10.186-10.237-5.551,0-10.135,4.634-10.135,10.237,0,5.551,4.584,10.135,10.135,10.135z"/>
+<path d="m262.4,355.02c0-0.509,0.407-0.968,0.917-0.968h12.426c9.83,0,17.877,7.996,17.877,17.774,0,9.881-8.047,17.876-17.877,17.876h-12.426c-0.509,0-0.917-0.458-0.917-0.967v-33.715zm12.834,27.145c5.755,0,9.931-4.532,9.931-10.339,0-5.755-4.176-10.288-9.931-10.288h-4.889v20.626h4.889z"/>
+<path d="m299.84,355.02c0-0.509,0.407-0.968,0.968-0.968h21.085c0.56,0,0.968,0.458,0.968,0.968v5.551c0,0.509-0.407,0.968-0.968,0.968h-14.108v6.315h11.612c0.509,0,0.968,0.458,0.968,0.968v5.551c0,0.561-0.459,0.968-0.968,0.968h-11.612v6.875h14.108c0.56,0,0.968,0.458,0.968,0.967v5.552c0,0.509-0.407,0.967-0.968,0.967h-21.085c-0.56,0-0.968-0.458-0.968-0.967v-33.715z"/>
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+<path d="m375.21,355.02c0-0.509,0.407-0.968,0.968-0.968h6.06c0.509,0,0.968,0.458,0.968,0.968v27.197h12.121c0.56,0,0.968,0.458,0.968,0.967v5.552c0,0.509-0.407,0.967-0.968,0.967h-19.15c-0.56,0-0.968-0.458-0.968-0.967v-33.716z"/>
+<path d="m401.24,355.02c0-0.509,0.458-0.968,0.968-0.968h6.112c0.509,0,0.968,0.458,0.968,0.968v33.715c0,0.509-0.459,0.967-0.968,0.967h-6.112c-0.51,0-0.968-0.458-0.968-0.967v-33.715z"/>
+<path d="m421.56,354.36c0.051-0.458,0.509-0.815,0.917-0.815h0.815c0.255,0,0.713,0.204,0.866,0.509l11.815,22.001h0.102l11.815-22.001c0.153-0.306,0.612-0.509,0.866-0.509h0.815c0.407,0,0.866,0.357,0.917,0.815l5.755,34.225c0.102,0.662-0.357,1.12-0.968,1.12h-6.009c-0.459,0-0.917-0.407-0.968-0.815l-2.292-15.737h-0.12l-8.556,16.501c-0.153,0.306-0.612,0.56-0.866,0.56h-0.917c-0.305,0-0.713-0.254-0.866-0.56l-8.607-16.501h-0.102l-2.24,15.737c-0.051,0.407-0.459,0.815-0.968,0.815h-6.01c-0.611,0-1.069-0.458-0.968-1.12l5.756-34.225z"/>
+<path d="M458.17,388.38,474.12,354.1c0.153-0.306,0.509-0.56,0.866-0.56h0.509c0.357,0,0.713,0.254,0.866,0.56l15.941,34.276c0.306,0.662-0.102,1.324-0.866,1.324h-5.653c-0.917,0-1.324-0.305-1.782-1.273l-1.834-4.023h-13.853l-1.834,4.074c-0.254,0.611-0.815,1.222-1.833,1.222h-5.603c-0.764-0.001-1.171-0.662-0.865-1.324zm20.932-10.899-3.871-8.403h-0.051l-3.82,8.403h7.742z"/>
+<path d="m499.22,361.54h-7.283c-0.56,0-0.968-0.458-0.968-0.968v-5.551c0-0.509,0.407-0.968,0.968-0.968h22.613c0.56,0,0.968,0.458,0.968,0.968v5.551c0,0.509-0.407,0.968-0.968,0.968h-7.283v27.197c0,0.509-0.459,0.967-0.968,0.967h-6.112c-0.509,0-0.968-0.458-0.968-0.967v-27.197z"/>
+<path d="m520.61,355.02c0-0.509,0.407-0.968,0.968-0.968h21.085c0.56,0,0.968,0.458,0.968,0.968v5.551c0,0.509-0.407,0.968-0.968,0.968h-14.108v6.315h11.612c0.509,0,0.968,0.458,0.968,0.968v5.551c0,0.561-0.458,0.968-0.968,0.968h-11.612v6.875h14.108c0.56,0,0.968,0.458,0.968,0.967v5.552c0,0.509-0.407,0.967-0.968,0.967h-21.08c-0.56,0-0.968-0.458-0.968-0.967v-33.715z"/>
+<polygon points="113.91,360.71,124.68,371.48,132.02,364.14,152.84,384.96,163.6,374.19,132.02,342.6"/>
+<polygon points="99.852,374.87,110.57,385.59,120.67,395.69,131.44,384.92,121.34,374.82,110.57,364.05,99.852,353.33,72.508,380.67,68.264,384.92,79.033,395.68,83.275,391.44,97.137,377.58"/>
+</g>
+</svg>
+
diff --git a/assets/images/icons/github.png b/assets/images/icons/github.png
deleted file mode 100644
index d99646c7..00000000
Binary files a/assets/images/icons/github.png and /dev/null differ
diff --git a/assets/images/icons/github.svg b/assets/images/icons/github.svg
new file mode 100644
index 00000000..687b1a67
--- /dev/null
+++ b/assets/images/icons/github.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="152" width="154">
+  <path d="M0 640q0 209 103 385.5t279.5 279.5t385.5 103t385.5 -103t279.5 -279.5t103 -385.5q0 -251 -146.5 -451.5t-378.5 -277.5q-27 -5 -39.5 7t-12.5 30v211q0 97 -52 142q57 6 102.5 18t94 39t81 66.5t53 105t20.5 150.5q0 121 -79 206q37 91 -8 204q-28 9 -81 -11t-92 -44 l-38 -24q-93 26 -192 26t-192 -26q-16 11 -42.5 27t-83.5 38.5t-86 13.5q-44 -113 -7 -204q-79 -85 -79 -206q0 -85 20.5 -150t52.5 -105t80.5 -67t94 -39t102.5 -18q-40 -36 -49 -103q-21 -10 -45 -15t-57 -5t-65.5 21.5t-55.5 62.5q-19 32 -48.5 52t-49.5 24l-20 3 q-21 0 -29 -4.5t-5 -11.5t9 -14t13 -12l7 -5q22 -10 43.5 -38t31.5 -51l10 -23q13 -38 44 -61.5t67 -30t69.5 -7t55.5 3.5l23 4q0 -38 0.5 -89t0.5 -54q0 -18 -13 -30t-40 -7q-232 77 -378.5 277.5t-146.5 451.5z" transform="scale(0.1, -0.1) translate(0, -1409)"/>
+</svg>
+
diff --git a/assets/images/icons/logs.svg b/assets/images/icons/logs.svg
new file mode 100644
index 00000000..a7c3ad5f
--- /dev/null
+++ b/assets/images/icons/logs.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="141" width="180">
+  <path d="M0 64v128q0 26 19 45t45 19h1664q26 0 45 -19t19 -45v-128q0 -26 -19 -45t-45 -19h-1664q-26 0 -45 19t-19 45zM0 448v128q0 26 19 45t45 19h1664q26 0 45 -19t19 -45v-128q0 -26 -19 -45t-45 -19h-1664q-26 0 -45 19t-19 45zM0 832v128q0 26 19 45t45 19h1664 q26 0 45 -19t19 -45v-128q0 -26 -19 -45t-45 -19h-1664q-26 0 -45 19t-19 45zM0 1216v128q0 26 19 45t45 19h1664q26 0 45 -19t19 -45v-128q0 -26 -19 -45t-45 -19h-1664q-26 0 -45 19t-19 45z" transform="scale(0.1, -0.1) translate(0, -1409)"/>
+</svg>
+
diff --git a/assets/images/icons/off.png b/assets/images/icons/off.png
deleted file mode 100755
index 8e11bea2..00000000
Binary files a/assets/images/icons/off.png and /dev/null differ
diff --git a/assets/images/icons/off.svg b/assets/images/icons/off.svg
new file mode 100644
index 00000000..8e822a68
--- /dev/null
+++ b/assets/images/icons/off.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="154" width="154">
+  <path d="M0 640q0 209 103 385.5t279.5 279.5t385.5 103t385.5 -103t279.5 -279.5t103 -385.5t-103 -385.5t-279.5 -279.5t-385.5 -103t-385.5 103t-279.5 279.5t-103 385.5zM387 414q0 -27 19 -46l90 -90q19 -19 46 -19q26 0 45 19l181 181l181 -181q19 -19 45 -19q27 0 46 19 l90 90q19 19 19 46q0 26 -19 45l-181 181l181 181q19 19 19 45q0 27 -19 46l-90 90q-19 19 -46 19q-26 0 -45 -19l-181 -181l-181 181q-19 19 -45 19q-27 0 -46 -19l-90 -90q-19 -19 -19 -46q0 -26 19 -45l181 -181l-181 -181q-19 -19 -19 -45z" transform="scale(0.1, -0.1) translate(0, -1409)"/>
+</svg>
+
diff --git a/assets/images/icons/repeat.png b/assets/images/icons/repeat.png
deleted file mode 100755
index 6e5b206f..00000000
Binary files a/assets/images/icons/repeat.png and /dev/null differ
diff --git a/assets/images/icons/repeat.svg b/assets/images/icons/repeat.svg
new file mode 100644
index 00000000..8b981450
--- /dev/null
+++ b/assets/images/icons/repeat.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="154" width="154">
+  <path d="M0 640q0 156 61 298t164 245t245 164t298 61q147 0 284.5 -55.5t244.5 -156.5l130 129q29 31 70 14q39 -17 39 -59v-448q0 -26 -19 -45t-45 -19h-448q-42 0 -59 40q-17 39 14 69l138 138q-148 137 -349 137q-104 0 -198.5 -40.5t-163.5 -109.5t-109.5 -163.5 t-40.5 -198.5t40.5 -198.5t109.5 -163.5t163.5 -109.5t198.5 -40.5q119 0 225 52t179 147q7 10 23 12q14 0 25 -9l137 -138q9 -8 9.5 -20.5t-7.5 -22.5q-109 -132 -264 -204.5t-327 -72.5q-156 0 -298 61t-245 164t-164 245t-61 298z" transform="scale(0.1, -0.1) translate(0, -1409)"/>
+</svg>
+
diff --git a/assets/images/icons/state-errored.svg b/assets/images/icons/state-errored.svg
index fa635e38..8bf0d558 100644
--- a/assets/images/icons/state-errored.svg
+++ b/assets/images/icons/state-errored.svg
@@ -1,5 +1,6 @@
-<svg xmlns="http://www.w3.org/2000/svg" x="0px" y="0px">
+<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10">
 <path fill="#A8A8A9" d="M5,0C2.239,0,0,2.24,0,5c0,2.762,2.238,5,5,5c2.761,0,5-2.238,5-5C10,2.24,7.762,0,5,0 M5.866,7.6H4.134
 	V6.732h1.731V7.6z M5.747,5.441C5.702,5.675,5.47,5.866,5.232,5.866H4.77c-0.238,0-0.47-0.19-0.516-0.425L3.751,2.828
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 </svg>
+
diff --git a/assets/images/icons/state-failed.svg b/assets/images/icons/state-failed.svg
index 8169be75..163b65a2 100644
--- a/assets/images/icons/state-failed.svg
+++ b/assets/images/icons/state-failed.svg
@@ -1,5 +1,6 @@
-<svg xmlns="http://www.w3.org/2000/svg" x="0px" y="0px">
+<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10">
 <path fill="#CD181B" d="M1.463,1.463c-1.951,1.952-1.951,5.119,0.001,7.072c1.954,1.953,5.12,1.953,7.071,0
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 </svg>
+
diff --git a/assets/images/icons/state-passed.svg b/assets/images/icons/state-passed.svg
index 9f9d6707..e019fa03 100644
--- a/assets/images/icons/state-passed.svg
+++ b/assets/images/icons/state-passed.svg
@@ -1,4 +1,5 @@
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index c1c05e8f..557bce00 100644
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similarity index 100%
rename from public/images/layout/made-in-berlin-badge.png
rename to assets/images/layout/made-in-berlin-badge.png
diff --git a/public/images/layout/travis-logo.png b/assets/images/layout/travis-logo.png
similarity index 100%
rename from public/images/layout/travis-logo.png
rename to assets/images/layout/travis-logo.png
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deleted file mode 100644
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diff --git a/assets/images/ui/cal.svg b/assets/images/ui/cal.svg
new file mode 100644
index 00000000..37ba058c
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new file mode 100644
index 00000000..d45ac555
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diff --git a/assets/images/ui/clock.svg b/assets/images/ui/clock.svg
new file mode 100644
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deleted file mode 100644
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new file mode 100644
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Binary files a/assets/images/ui/help.png and /dev/null differ
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new file mode 100644
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new file mode 100644
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deleted file mode 100644
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diff --git a/assets/images/ui/log.fold.closed.2.svg b/assets/images/ui/log.fold.closed.2.svg
new file mode 100644
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deleted file mode 100644
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diff --git a/assets/images/ui/log.fold.closed.3.svg b/assets/images/ui/log.fold.closed.3.svg
new file mode 100644
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deleted file mode 100644
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new file mode 100644
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deleted file mode 100644
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new file mode 100644
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deleted file mode 100644
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new file mode 100644
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index 4f2ca670..00000000
Binary files a/assets/images/ui/slider-closed.png and /dev/null differ
diff --git a/assets/images/ui/slider-closed.svg b/assets/images/ui/slider-closed.svg
new file mode 100644
index 00000000..184742d6
--- /dev/null
+++ b/assets/images/ui/slider-closed.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="10" width="5">
+<path fill="#999" d="M0,0,5,5,0,10z"/>
+</svg>
+
diff --git a/assets/images/ui/slider-open.png b/assets/images/ui/slider-open.png
deleted file mode 100644
index 6a037b7b..00000000
Binary files a/assets/images/ui/slider-open.png and /dev/null differ
diff --git a/assets/images/ui/slider-open.svg b/assets/images/ui/slider-open.svg
new file mode 100644
index 00000000..97545540
--- /dev/null
+++ b/assets/images/ui/slider-open.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="10" width="5">
+<path fill="#999" d="M5,0,0,5,5,10z"/>
+</svg>
+
diff --git a/assets/images/ui/spinner.gif b/assets/images/ui/spinner.gif
deleted file mode 100644
index 6ac7d5b5..00000000
Binary files a/assets/images/ui/spinner.gif and /dev/null differ
diff --git a/assets/images/ui/spinner.svg b/assets/images/ui/spinner.svg
new file mode 100644
index 00000000..da042b5f
--- /dev/null
+++ b/assets/images/ui/spinner.svg
@@ -0,0 +1,23 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="8">
+<g transform="translate(8, 4)">
+  <rect x="-8" y="-4" width="5" height="8">
+    <animateTransform id="a" attributeName="transform" type="scale" from="1,0.5" to="1" dur="0.4s" begin="0;b.end"/>
+    <animate attributeName="fill" from="#eee" to="#888" dur="0.4s" begin="0;b.end"/>
+    <animateTransform id="b" attributeName="transform" type="scale" from="1" to="1,0.5" dur="0.4s" begin="a.end"/>
+    <animate attributeName="fill" from="#888" to="#eee" dur="0.4s" begin="a.end"/>
+  </rect>
+  <rect x="-2" y="-4" width="4" height="8">
+    <animateTransform id="c" attributeName="transform" type="scale" from="1,0.5" to="1" dur="0.4s" begin="0.1s;d.end"/>
+    <animate attributeName="fill" from="#eee" to="#888" dur="0.4s" begin="0.1s;d.end"/>
+    <animateTransform id="d" begin="c.end" attributeName="transform" type="scale" to="1,0.5" from="1" dur="0.4s"/>
+    <animate attributeName="fill" from="#888" to="#eee" dur="0.4s" begin="c.end"/>
+  </rect>
+  <rect x="3" y="-4" width="5" height="8">
+    <animateTransform id="e" attributeName="transform" type="scale" from="1,0.5" to="1" dur="0.4s" begin="0.2s;f.end"/>
+    <animate attributeName="fill" from="#eee" to="#888" dur="0.4s" begin="0.2s;f.end"/>
+    <animateTransform id="f" attributeName="transform" type="scale" from="1" to="1,0.5" dur="0.4s" begin="e.end"/>
+    <animate attributeName="fill" from="#888" to="#eee" dur="0.4s" begin="e.end"/>
+  </rect>
+</g>
+</svg>
+
diff --git a/assets/images/ui/spinner_long.gif b/assets/images/ui/spinner_long.gif
deleted file mode 100644
index a69ef3ef..00000000
Binary files a/assets/images/ui/spinner_long.gif and /dev/null differ
diff --git a/assets/images/ui/spinner_long.svg b/assets/images/ui/spinner_long.svg
new file mode 100644
index 00000000..3ef0f469
--- /dev/null
+++ b/assets/images/ui/spinner_long.svg
@@ -0,0 +1,41 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="64" height="8">
+<g transform="translate(32, 4)">
+  <rect x="-31" y="-4" width="8" height="8">
+    <animateTransform id="a" attributeName="transform" type="scale" from="1,0.5" to="1" dur="0.55s" begin="0;b.end"/>
+    <animate attributeName="fill" from="#eee" to="#888" dur="0.55s" begin="0;b.end"/>
+    <animateTransform id="b" attributeName="transform" type="scale" from="1" to="1,0.5" dur="0.55s" begin="a.end"/>
+    <animate attributeName="fill" from="#888" to="#eee" dur="0.55s" begin="a.end"/>
+  </rect>
+  <rect x="-20" y="-4" width="8" height="8">
+    <animateTransform id="c" attributeName="transform" type="scale" from="1,0.5" to="1" dur="0.55s" begin="0.1s;d.end"/>
+    <animate attributeName="fill" from="#eee" to="#888" dur="0.55s" begin="0.1s;d.end"/>
+    <animateTransform id="d" begin="c.end" attributeName="transform" type="scale" to="1,0.5" from="1" dur="0.55s"/>
+    <animate attributeName="fill" from="#888" to="#eee" dur="0.55s" begin="c.end"/>
+  </rect>
+  <rect x="-9" y="-4" width="8" height="8">
+    <animateTransform id="e" attributeName="transform" type="scale" from="1,0.5" to="1" dur="0.55s" begin="0.2s;f.end"/>
+    <animate attributeName="fill" from="#eee" to="#888" dur="0.55s" begin="0.2s;f.end"/>
+    <animateTransform id="f" attributeName="transform" type="scale" from="1" to="1,0.5" dur="0.55s" begin="e.end"/>
+    <animate attributeName="fill" from="#888" to="#eee" dur="0.55s" begin="e.end"/>
+  </rect>
+  <rect x="1" y="-4" width="8" height="8">
+    <animateTransform id="g" attributeName="transform" type="scale" from="1,0.5" to="1" dur="0.55s" begin="0.3s;h.end"/>
+    <animate attributeName="fill" from="#eee" to="#888" dur="0.55s" begin="0.3s;h.end"/>
+    <animateTransform id="h" attributeName="transform" type="scale" from="1" to="1,0.5" dur="0.55s" begin="g.end"/>
+    <animate attributeName="fill" from="#888" to="#eee" dur="0.55s" begin="g.end"/>
+  </rect>
+  <rect x="12" y="-4" width="8" height="8">
+    <animateTransform id="i" attributeName="transform" type="scale" from="1,0.5" to="1" dur="0.55s" begin="0.4s;j.end"/>
+    <animate attributeName="fill" from="#eee" to="#888" dur="0.55s" begin="0.4s;j.end"/>
+    <animateTransform id="j" attributeName="transform" type="scale" from="1" to="1,0.5" dur="0.55s" begin="i.end"/>
+    <animate attributeName="fill" from="#888" to="#eee" dur="0.55s" begin="i.end"/>
+  </rect>
+  <rect x="23" y="-4" width="8" height="8">
+    <animateTransform id="k" attributeName="transform" type="scale" from="1,0.5" to="1" dur="0.55s" begin="0.5s;l.end"/>
+    <animate attributeName="fill" from="#eee" to="#888" dur="0.55s" begin="0.5s;l.end"/>
+    <animateTransform id="l" attributeName="transform" type="scale" from="1" to="1,0.5" dur="0.55s" begin="k.end"/>
+    <animate attributeName="fill" from="#888" to="#eee" dur="0.55s" begin="k.end"/>
+  </rect>
+</g>
+</svg>
+
diff --git a/assets/images/ui/to-top.png b/assets/images/ui/to-top.png
deleted file mode 100644
index 25e63fff..00000000
Binary files a/assets/images/ui/to-top.png and /dev/null differ
diff --git a/assets/images/ui/user.png b/assets/images/ui/user.png
deleted file mode 100644
index 0250506a..00000000
Binary files a/assets/images/ui/user.png and /dev/null differ
diff --git a/assets/images/ui/user.svg b/assets/images/ui/user.svg
new file mode 100644
index 00000000..1ee94336
--- /dev/null
+++ b/assets/images/ui/user.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="153" width="141">
+  <path d="M0 131q0 53 3.5 103.5t14 109t26.5 108.5t43 97.5t62 81t85.5 53.5t111.5 20q9 0 42 -21.5t74.5 -48t108 -48t133.5 -21.5t133.5 21.5t108 48t74.5 48t42 21.5q61 0 111.5 -20t85.5 -53.5t62 -81t43 -97.5t26.5 -108.5t14 -109t3.5 -103.5q0 -120 -73 -189.5t-194 -69.5 h-874q-121 0 -194 69.5t-73 189.5zM320 1024q0 159 112.5 271.5t271.5 112.5t271.5 -112.5t112.5 -271.5t-112.5 -271.5t-271.5 -112.5t-271.5 112.5t-112.5 271.5z" transform="scale(0.1, -0.1) translate(0, -1409)" fill="#999"/>
+</svg>
+
diff --git a/assets/images/ui/workers-close.png b/assets/images/ui/workers-close.png
deleted file mode 100644
index 25e63fff..00000000
Binary files a/assets/images/ui/workers-close.png and /dev/null differ
diff --git a/assets/images/ui/workers-close.svg b/assets/images/ui/workers-close.svg
new file mode 100644
index 00000000..c3bf4048
--- /dev/null
+++ b/assets/images/ui/workers-close.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="5" width="10">
+<path fill="#c2c2c2" d="M10,5,5,0,0,5z"/>
+</svg>
+
diff --git a/assets/images/ui/workers-open.png b/assets/images/ui/workers-open.png
deleted file mode 100644
index 4723ec48..00000000
Binary files a/assets/images/ui/workers-open.png and /dev/null differ
diff --git a/assets/images/ui/workers-open.svg b/assets/images/ui/workers-open.svg
new file mode 100644
index 00000000..1ba957f0
--- /dev/null
+++ b/assets/images/ui/workers-open.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="5" width="10">
+<path fill="#c2c2c2" d="M0,0,5,5,10,0z"/>
+</svg>
+
diff --git a/assets/scripts/app/templates/builds/show.hbs b/assets/scripts/app/templates/builds/show.hbs
index 1df7e292..e39259e4 100644
--- a/assets/scripts/app/templates/builds/show.hbs
+++ b/assets/scripts/app/templates/builds/show.hbs
@@ -41,12 +41,12 @@
       </div>
 
       <div class="commit-changes">
-        <div class="text"><a class="commit" {{bind-attr href="controller.urlGithubCommit"}}>Commit {{formatSha commit.sha}}</a></div><img src="/images/icons/github.png"/>
+        <div class="text"><a class="commit" {{bind-attr href="controller.urlGithubCommit"}}>Commit {{formatSha commit.sha}}</a></div><img src="/images/icons/github.svg"/>
         {{#if build.pullRequest}}
-          <div class="text"><a class="compare" {{bind-attr href="build.commit.compareUrl"}}>#{{build.pullRequestNumber}}: {{build.pullRequestTitle}}</a></div><img src="/images/icons/github.png"/>
+          <div class="text"><a class="compare" {{bind-attr href="build.commit.compareUrl"}}>#{{build.pullRequestNumber}}: {{build.pullRequestTitle}}</a></div><img src="/images/icons/github.svg"/>
         {{else}}
           {{#if build.commit.compareUrl}}
-            <div class="text"><a class="compare" {{bind-attr href="build.commit.compareUrl"}}>Compare {{shortCompareShas build.commit.compareUrl}}</a></div><img src="/images/icons/github.png"/>
+            <div class="text"><a class="compare" {{bind-attr href="build.commit.compareUrl"}}>Compare {{shortCompareShas build.commit.compareUrl}}</a></div><img src="/images/icons/github.svg"/>
           {{/if}}
         {{/if}}
       </div>
diff --git a/assets/scripts/app/templates/jobs/show.hbs b/assets/scripts/app/templates/jobs/show.hbs
index a258f889..2158964d 100644
--- a/assets/scripts/app/templates/jobs/show.hbs
+++ b/assets/scripts/app/templates/jobs/show.hbs
@@ -40,12 +40,12 @@
         </div>
 
         <div class="commit-changes">
-          <div class="text"><a class="commit" {{bind-attr href="controller.urlGithubCommit"}}>Commit {{formatSha job.commit.sha}}</a></div><img src="/images/icons/github.png" height="15"/>
+          <div class="text"><a class="commit" {{bind-attr href="controller.urlGithubCommit"}}>Commit {{formatSha job.commit.sha}}</a></div><img src="/images/icons/github.svg" height="15"/>
           {{#if job.build.pullRequest}}
-            <div class="text"><a class="compare" {{bind-attr href="job.commit.compareUrl"}} >#{{job.build.pullRequestNumber}}: {{job.build.pullRequestTitle}}</a></div><img src="/images/icons/github.png"/>
+            <div class="text"><a class="compare" {{bind-attr href="job.commit.compareUrl"}} >#{{job.build.pullRequestNumber}}: {{job.build.pullRequestTitle}}</a></div><img src="/images/icons/github.svg"/>
           {{else}}
             {{#if job.commit.compareUrl}}
-              <div class="text"><a class="compare" {{bind-attr href="job.commit.compareUrl"}}>Compare {{shortCompareShas job.commit.compareUrl}}</a></div><img src="/images/icons/github.png"/>
+              <div class="text"><a class="compare" {{bind-attr href="job.commit.compareUrl"}}>Compare {{shortCompareShas job.commit.compareUrl}}</a></div><img src="/images/icons/github.svg"/>
             {{/if}}
           {{/if}}
         </div>
diff --git a/assets/scripts/app/templates/repos/show.hbs b/assets/scripts/app/templates/repos/show.hbs
index 9b80786a..ff253def 100644
--- a/assets/scripts/app/templates/repos/show.hbs
+++ b/assets/scripts/app/templates/repos/show.hbs
@@ -6,7 +6,7 @@
       {{#with repo}}
         <div id="repo-header">
           <h3>{{#link-to "repo" this}}{{slug}}{{/link-to}}</h3>
-          <div class="github-icon"><a {{bind-attr href="controller.urlGithub"}}><img src="/images/icons/github.png" width="21" height="21"/></a></div>
+          <div class="github-icon"><a {{bind-attr href="controller.urlGithub"}}><img src="/images/icons/github.svg" width="21" height="21"/></a></div>
           {{view Travis.RepoShowToolsView}}
         </div>
 
diff --git a/assets/scripts/app/templates/repos/show/actions.hbs b/assets/scripts/app/templates/repos/show/actions.hbs
index 72382323..c6626123 100644
--- a/assets/scripts/app/templates/repos/show/actions.hbs
+++ b/assets/scripts/app/templates/repos/show/actions.hbs
@@ -3,13 +3,13 @@
     {{#if view.displayCancelBuild}}
       <li class="icon" title="Cancel Build">
         <a href="#" {{action "cancelBuild" target="view"}}
-          {{bind-attr class="view.canCancelBuild::disabled"}}><img class="icon" src="/images/icons/off.png" width="20"></a>
+          {{bind-attr class="view.canCancelBuild::disabled"}}><img class="icon" src="/images/icons/off.svg" width="20"></a>
       </li>
     {{/if}}
     {{#if view.displayCancelJob}}
       <li class="icon" title="Cancel Job">
         <a href="#" {{action "cancelJob" target="view"}}
-          {{bind-attr class="view.canCancelJob::disabled"}}><img class="icon" width="20" src="/images/icons/off.png"/></a>
+          {{bind-attr class="view.canCancelJob::disabled"}}><img class="icon" width="20" src="/images/icons/off.svg"/></a>
       </li>
     {{/if}}
     {{#if view.displayRequeueBuild}}
@@ -18,7 +18,7 @@
           <span class="icon loading"></span>
         {{else}}
           <a href="#" {{action "requeueBuild" target="view"}}
-            {{bind-attr class="view.canRequeueBuild::disabled"}}><img class="icon" src="/images/icons/repeat.png" width="20"></a>
+            {{bind-attr class="view.canRequeueBuild::disabled"}}><img class="icon" src="/images/icons/repeat.svg" width="20"></a>
         {{/if}}
       </li>
     {{/if}}
@@ -28,7 +28,7 @@
           <span class="icon loading"></span>
         {{else}}
           <a href="#" {{action "requeueJob" target="view"}}
-            {{bind-attr class="view.canRequeueJob::disabled"}}><img src="/images/icons/repeat.png" width="20"></a>
+            {{bind-attr class="view.canRequeueJob::disabled"}}><img src="/images/icons/repeat.svg" width="20"></a>
         {{/if}}
       </li>
     {{/if}}
@@ -36,7 +36,7 @@
              does not refresh 'if' properly, need further investigation}}
     {{#if view.jobIdForLog}}
       <li class="icon" title="Download Log">
-        <a class="download-log" {{bind-attr href="view.plainTextLogUrl"}}><img class="icon" src="/images/icons/align-justify.png" width="20"/></a>
+        <a class="download-log" {{bind-attr href="view.plainTextLogUrl"}}><img class="icon" src="/images/icons/logs.svg" width="20"/></a>
       </li>
     {{/if}}
     {{#if view.displayCodeClimate}}
@@ -44,7 +44,7 @@
         <a href="#" name="code-climate"
           {{action "codeClimatePopup" target="view"}}
           {{bind-attr class=":open-popup"}}>
-          <img src="/images/icons/code-climate-icon.png"/>
+          <img src="/images/icons/code-climate-icon.svg"/>
         </a>
       </li>
     {{/if}}
diff --git a/assets/scripts/app/templates/repos/show/tools.hbs b/assets/scripts/app/templates/repos/show/tools.hbs
index bfc24675..b5846fa9 100644
--- a/assets/scripts/app/templates/repos/show/tools.hbs
+++ b/assets/scripts/app/templates/repos/show/tools.hbs
@@ -55,7 +55,7 @@
 </div>
 
 <div id="code-climate" class="popup">
-  <img src="/images/icons/code-climate-logo.png" id="code-climate-logo"/>
+  <img src="/images/icons/code-climate-logo.svg" id="code-climate-logo"/>
   <a href="#" class="close" {{action "popupClose" target="view"}}></a>
   <p>
     <b>Want test coverage for your tests?</b>
diff --git a/assets/scripts/config/emoij.coffee b/assets/scripts/config/emoij.coffee
index 26da28ba..46d0d5d9 100644
--- a/assets/scripts/config/emoij.coffee
+++ b/assets/scripts/config/emoij.coffee
@@ -1 +1 @@
-@EmojiDictionary = ['+1', '-1', '100', '1234', '8ball', 'a', 'ab', 'abc', 'abcd', 'accept', 'aerial_tramway', 'airplane', 'alarm_clock', 'alien', 'ambulance', 'anchor', 'angel', 'anger', 'angry', 'anguished', 'ant', 'apple', 'aquarius', 'aries', 'arrow_backward', 'arrow_double_down', 'arrow_double_up', 'arrow_down', 'arrow_down_small', 'arrow_forward', 'arrow_heading_down', 'arrow_heading_up', 'arrow_left', 'arrow_lower_left', 'arrow_lower_right', 'arrow_right', 'arrow_right_hook', 'arrow_up', 'arrow_up_down', 'arrow_up_small', 'arrow_upper_left', 'arrow_upper_right', 'arrows_clockwise', 'arrows_counterclockwise', 'art', 'articulated_lorry', 'astonished', 'atm', 'b', 'baby', 'baby_bottle', 'baby_chick', 'baby_symbol', 'baggage_claim', 'balloon', 'ballot_box_with_check', 'bamboo', 'banana', 'bangbang', 'bank', 'bar_chart', 'barber', 'baseball', 'basketball', 'bath', 'bathtub', 'battery', 'bear', 'bee', 'beer', 'beers', 'beetle', 'beginner', 'bell', 'bento', 'bicyclist', 'bike', 'bikini', 'bird', 'birthday', 'black_circle', 'black_joker', 'black_nib', 'black_square', 'black_square_button', 'blossom', 'blowfish', 'blue_book', 'blue_car', 'blue_heart', 'blush', 'boar', 'boat', 'bomb', 'book', 'bookmark', 'bookmark_tabs', 'books', 'boom', 'boot', 'bouquet', 'bow', 'bowling', 'bowtie', 'boy', 'bread', 'bride_with_veil', 'bridge_at_night', 'briefcase', 'broken_heart', 'bug', 'bulb', 'bullettrain_front', 'bullettrain_side', 'bus', 'busstop', 'bust_in_silhouette', 'busts_in_silhouette', 'cactus', 'cake', 'calendar', 'calling', 'camel', 'camera', 'cancer', 'candy', 'capital_abcd', 'capricorn', 'car', 'card_index', 'carousel_horse', 'cat', 'cat2', 'cd', 'chart', 'chart_with_downwards_trend', 'chart_with_upwards_trend', 'checkered_flag', 'cherries', 'cherry_blossom', 'chestnut', 'chicken', 'children_crossing', 'chocolate_bar', 'christmas_tree', 'church', 'cinema', 'circus_tent', 'city_sunrise', 'city_sunset', 'cl', 'clap', 'clapper', 'clipboard', 'clock1', 'clock10', 'clock1030', 'clock11', 'clock1130', 'clock12', 'clock1230', 'clock130', 'clock2', 'clock230', 'clock3', 'clock330', 'clock4', 'clock430', 'clock5', 'clock530', 'clock6', 'clock630', 'clock7', 'clock730', 'clock8', 'clock830', 'clock9', 'clock930', 'closed_book', 'closed_lock_with_key', 'closed_umbrella', 'cloud', 'clubs', 'cn', 'cocktail', 'coffee', 'cold_sweat', 'collision', 'computer', 'confetti_ball', 'confounded', 'confused', 'congratulations', 'construction', 'construction_worker', 'convenience_store', 'cookie', 'cool', 'cop', 'copyright', 'corn', 'couple', 'couple_with_heart', 'couplekiss', 'cow', 'cow2', 'credit_card', 'crocodile', 'crossed_flags', 'crown', 'cry', 'crying_cat_face', 'crystal_ball', 'cupid', 'curly_loop', 'currency_exchange', 'curry', 'custard', 'customs', 'cyclone', 'dancer', 'dancers', 'dango', 'dart', 'dash', 'date', 'de', 'deciduous_tree', 'department_store', 'diamond_shape_with_a_dot_inside', 'diamonds', 'disappointed', 'disappointed_relieved', 'dizzy', 'dizzy_face', 'do_not_litter', 'dog', 'dog2', 'dollar', 'dolls', 'dolphin', 'donut', 'door', 'doughnut', 'dragon', 'dragon_face', 'dress', 'dromedary_camel', 'droplet', 'dvd', 'e-mail', 'ear', 'ear_of_rice', 'earth_africa', 'earth_americas', 'earth_asia', 'egg', 'eggplant', 'eight', 'eight_pointed_black_star', 'eight_spoked_asterisk', 'electric_plug', 'elephant', 'email', 'end', 'envelope', 'es', 'euro', 'european_castle', 'european_post_office', 'evergreen_tree', 'exclamation', 'expressionless', 'eyeglasses', 'eyes', 'facepunch', 'factory', 'fallen_leaf', 'family', 'fast_forward', 'fax', 'fearful', 'feelsgood', 'feet', 'ferris_wheel', 'file_folder', 'finnadie', 'fire', 'fire_engine', 'fireworks', 'first_quarter_moon', 'first_quarter_moon_with_face', 'fish', 'fish_cake', 'fishing_pole_and_fish', 'fist', 'five', 'flags', 'flashlight', 'floppy_disk', 'flower_playing_cards', 'flushed', 'foggy', 'football', 'fork_and_knife', 'fountain', 'four', 'four_leaf_clover', 'fr', 'free', 'fried_shrimp', 'fries', 'frog', 'frowning', 'fu', 'fuelpump', 'full_moon', 'full_moon_with_face', 'game_die', 'gb', 'gem', 'gemini', 'ghost', 'gift', 'gift_heart', 'girl', 'globe_with_meridians', 'goat', 'goberserk', 'godmode', 'golf', 'grapes', 'green_apple', 'green_book', 'green_heart', 'grey_exclamation', 'grey_question', 'grimacing', 'grin', 'grinning', 'guardsman', 'guitar', 'gun', 'haircut', 'hamburger', 'hammer', 'hamster', 'hand', 'handbag', 'hankey', 'hash', 'hatched_chick', 'hatching_chick', 'headphones', 'hear_no_evil', 'heart', 'heart_decoration', 'heart_eyes', 'heart_eyes_cat', 'heartbeat', 'heartpulse', 'hearts', 'heavy_check_mark', 'heavy_division_sign', 'heavy_dollar_sign', 'heavy_exclamation_mark', 'heavy_minus_sign', 'heavy_multiplication_x', 'heavy_plus_sign', 'helicopter', 'herb', 'hibiscus', 'high_brightness', 'high_heel', 'hocho', 'honey_pot', 'honeybee', 'horse', 'horse_racing', 'hospital', 'hotel', 'hotsprings', 'hourglass', 'hourglass_flowing_sand', 'house', 'house_with_garden', 'hurtrealbad', 'hushed', 'ice_cream', 'icecream', 'id', 'ideograph_advantage', 'imp', 'inbox_tray', 'incoming_envelope', 'information_desk_person', 'information_source', 'innocent', 'interrobang', 'iphone', 'it', 'izakaya_lantern', 'jack_o_lantern', 'japan', 'japanese_castle', 'japanese_goblin', 'japanese_ogre', 'jeans', 'joy', 'joy_cat', 'jp', 'key', 'keycap_ten', 'kimono', 'kiss', 'kissing', 'kissing_cat', 'kissing_closed_eyes', 'kissing_face', 'kissing_heart', 'kissing_smiling_eyes', 'koala', 'koko', 'kr', 'large_blue_circle', 'large_blue_diamond', 'large_orange_diamond', 'last_quarter_moon', 'last_quarter_moon_with_face', 'laughing', 'leaves', 'ledger', 'left_luggage', 'left_right_arrow', 'leftwards_arrow_with_hook', 'lemon', 'leo', 'leopard', 'libra', 'light_rail', 'link', 'lips', 'lipstick', 'lock', 'lock_with_ink_pen', 'lollipop', 'loop', 'loudspeaker', 'love_hotel', 'love_letter', 'low_brightness', 'm', 'mag', 'mag_right', 'mahjong', 'mailbox', 'mailbox_closed', 'mailbox_with_mail', 'mailbox_with_no_mail', 'man', 'man_with_gua_pi_mao', 'man_with_turban', 'mans_shoe', 'maple_leaf', 'mask', 'massage', 'meat_on_bone', 'mega', 'melon', 'memo', 'mens', 'metal', 'metro', 'microphone', 'microscope', 'milky_way', 'minibus', 'minidisc', 'mobile_phone_off', 'money_with_wings', 'moneybag', 'monkey', 'monkey_face', 'monorail', 'moon', 'mortar_board', 'mount_fuji', 'mountain_bicyclist', 'mountain_cableway', 'mountain_railway', 'mouse', 'mouse2', 'movie_camera', 'moyai', 'muscle', 'mushroom', 'musical_keyboard', 'musical_note', 'musical_score', 'mute', 'nail_care', 'name_badge', 'neckbeard', 'necktie', 'negative_squared_cross_mark', 'neutral_face', 'new', 'new_moon', 'new_moon_with_face', 'newspaper', 'ng', 'nine', 'no_bell', 'no_bicycles', 'no_entry', 'no_entry_sign', 'no_good', 'no_mobile_phones', 'no_mouth', 'no_pedestrians', 'no_smoking', 'non-potable_water', 'nose', 'notebook', 'notebook_with_decorative_cover', 'notes', 'nut_and_bolt', 'o', 'o2', 'ocean', 'octocat', 'octopus', 'oden', 'office', 'ok', 'ok_hand', 'ok_woman', 'older_man', 'older_woman', 'on', 'oncoming_automobile', 'oncoming_bus', 'oncoming_police_car', 'oncoming_taxi', 'one', 'open_file_folder', 'open_hands', 'open_mouth', 'ophiuchus', 'orange_book', 'outbox_tray', 'ox', 'page_facing_up', 'page_with_curl', 'pager', 'palm_tree', 'panda_face', 'paperclip', 'parking', 'part_alternation_mark', 'partly_sunny', 'passport_control', 'paw_prints', 'peach', 'pear', 'pencil', 'pencil2', 'penguin', 'pensive', 'performing_arts', 'persevere', 'person_frowning', 'person_with_blond_hair', 'person_with_pouting_face', 'phone', 'pig', 'pig2', 'pig_nose', 'pill', 'pineapple', 'pisces', 'pizza', 'plus1', 'point_down', 'point_left', 'point_right', 'point_up', 'point_up_2', 'police_car', 'poodle', 'poop', 'post_office', 'postal_horn', 'postbox', 'potable_water', 'pouch', 'poultry_leg', 'pound', 'pouting_cat', 'pray', 'princess', 'punch', 'purple_heart', 'purse', 'pushpin', 'put_litter_in_its_place', 'question', 'rabbit', 'rabbit2', 'racehorse', 'radio', 'radio_button', 'rage', 'rage1', 'rage2', 'rage3', 'rage4', 'railway_car', 'rainbow', 'raised_hand', 'raised_hands', 'raising_hand', 'ram', 'ramen', 'rat', 'recycle', 'red_car', 'red_circle', 'registered', 'relaxed', 'relieved', 'repeat', 'repeat_one', 'restroom', 'revolving_hearts', 'rewind', 'ribbon', 'rice', 'rice_ball', 'rice_cracker', 'rice_scene', 'ring', 'rocket', 'roller_coaster', 'rooster', 'rose', 'rotating_light', 'round_pushpin', 'rowboat', 'ru', 'rugby_football', 'runner', 'running', 'running_shirt_with_sash', 'sa', 'sagittarius', 'sailboat', 'sake', 'sandal', 'santa', 'satellite', 'satisfied', 'saxophone', 'school', 'school_satchel', 'scissors', 'scorpius', 'scream', 'scream_cat', 'scroll', 'seat', 'secret', 'see_no_evil', 'seedling', 'seven', 'shaved_ice', 'sheep', 'shell', 'ship', 'shipit', 'shirt', 'shit', 'shoe', 'shower', 'signal_strength', 'six', 'six_pointed_star', 'ski', 'skull', 'sleeping', 'sleepy', 'slot_machine', 'small_blue_diamond', 'small_orange_diamond', 'small_red_triangle', 'small_red_triangle_down', 'smile', 'smile_cat', 'smiley', 'smiley_cat', 'smiling_imp', 'smirk', 'smirk_cat', 'smoking', 'snail', 'snake', 'snowboarder', 'snowflake', 'snowman', 'sob', 'soccer', 'soon', 'sos', 'sound', 'space_invader', 'spades', 'spaghetti', 'sparkler', 'sparkles', 'sparkling_heart', 'speak_no_evil', 'speaker', 'speech_balloon', 'speedboat', 'squirrel', 'star', 'star2', 'stars', 'station', 'statue_of_liberty', 'steam_locomotive', 'stew', 'straight_ruler', 'strawberry', 'stuck_out_tongue', 'stuck_out_tongue_closed_eyes', 'stuck_out_tongue_winking_eye', 'sun_with_face', 'sunflower', 'sunglasses', 'sunny', 'sunrise', 'sunrise_over_mountains', 'surfer', 'sushi', 'suspect', 'suspension_railway', 'sweat', 'sweat_drops', 'sweat_smile', 'sweet_potato', 'swimmer', 'symbols', 'syringe', 'tada', 'tanabata_tree', 'tangerine', 'taurus', 'taxi', 'tea', 'telephone', 'telephone_receiver', 'telescope', 'tennis', 'tent', 'thought_balloon', 'three', 'thumbsdown', 'thumbsup', 'ticket', 'tiger', 'tiger2', 'tired_face', 'tm', 'toilet', 'tokyo_tower', 'tomato', 'tongue', 'top', 'tophat', 'tractor', 'traffic_light', 'train', 'train2', 'tram', 'triangular_flag_on_post', 'triangular_ruler', 'trident', 'triumph', 'trolleybus', 'trollface', 'trophy', 'tropical_drink', 'tropical_fish', 'truck', 'trumpet', 'tshirt', 'tulip', 'turtle', 'tv', 'twisted_rightwards_arrows', 'two', 'two_hearts', 'two_men_holding_hands', 'two_women_holding_hands', 'u5272', 'u5408', 'u55b6', 'u6307', 'u6708', 'u6709', 'u6e80', 'u7121', 'u7533', 'u7981', 'u7a7a', 'uk', 'umbrella', 'unamused', 'underage', 'unlock', 'up', 'us', 'v', 'vertical_traffic_light', 'vhs', 'vibration_mode', 'video_camera', 'video_game', 'violin', 'virgo', 'volcano', 'vs', 'walking', 'waning_crescent_moon', 'waning_gibbous_moon', 'warning', 'watch', 'water_buffalo', 'watermelon', 'wave', 'wavy_dash', 'waxing_crescent_moon', 'waxing_gibbous_moon', 'wc', 'weary', 'wedding', 'whale', 'whale2', 'wheelchair', 'white_check_mark', 'white_circle', 'white_flower', 'white_square', 'white_square_button', 'wind_chime', 'wine_glass', 'wink', 'wolf', 'woman', 'womans_clothes', 'womans_hat', 'womens', 'worried', 'wrench', 'x', 'yellow_heart', 'yen', 'yum', 'zap', 'zero', 'zzz']
+@EmojiDictionary = ['+1', '-1', '0', '1', '100', '109', '1234', '2', '3', '4', '5', '6', '7', '8', '8ball', '9', 'a', 'ab', 'abc', 'abcd', 'accept', 'aerial_tramway', 'airplane', 'alarm_clock', 'alien', 'ambulance', 'anchor', 'angel', 'anger', 'angry', 'anguished', 'ant', 'apple', 'aquarius', 'aries', 'arrow_backward', 'arrow_double_down', 'arrow_double_up', 'arrow_down', 'arrow_down_small', 'arrow_forward', 'arrow_heading_down', 'arrow_heading_up', 'arrow_left', 'arrow_lower_left', 'arrow_lower_right', 'arrow_right', 'arrow_right_hook', 'arrow_up', 'arrow_up_down', 'arrow_up_small', 'arrow_upper_left', 'arrow_upper_right', 'arrows_clockwise', 'arrows_counterclockwise', 'art', 'articulated_lorry', 'astonished', 'atm', 'b', 'baby', 'baby_bottle', 'baby_chick', 'baby_symbol', 'baggage_claim', 'balloon', 'ballot_box_with_check', 'bamboo', 'banana', 'bangbang', 'bank', 'bar_chart', 'barber', 'baseball', 'basketball', 'bath', 'bathtub', 'battery', 'bear', 'bee', 'beer', 'beers', 'beetle', 'beginner', 'bell', 'bento', 'bicyclist', 'bike', 'bikini', 'bird', 'birthday', 'black_circle', 'black_joker', 'black_nib', 'black_square', 'black_square_button', 'blossom', 'blowfish', 'blue_book', 'blue_car', 'blue_heart', 'blush', 'boar', 'boat', 'bomb', 'book', 'bookmark', 'bookmark_tabs', 'books', 'boom', 'boot', 'bouquet', 'bow', 'bowling', 'bowtie', 'boy', 'bread', 'bride_with_veil', 'bridge_at_night', 'briefcase', 'broken_heart', 'bug', 'bulb', 'bullettrain_front', 'bullettrain_side', 'bus', 'busstop', 'bust_in_silhouette', 'busts_in_silhouette', 'cactus', 'cake', 'calendar', 'calling', 'camel', 'camera', 'cancer', 'candy', 'capital_abcd', 'capricorn', 'car', 'card_index', 'carousel_horse', 'cat', 'cat2', 'cd', 'chart', 'chart_with_downwards_trend', 'chart_with_upwards_trend', 'checkered_flag', 'cherries', 'cherry_blossom', 'chestnut', 'chicken', 'children_crossing', 'chocolate_bar', 'christmas_tree', 'church', 'cinema', 'circus_tent', 'city_sunrise', 'city_sunset', 'cl', 'clap', 'clapper', 'clipboard', 'clock1', 'clock10', 'clock1030', 'clock11', 'clock1130', 'clock12', 'clock1230', 'clock130', 'clock2', 'clock230', 'clock3', 'clock330', 'clock4', 'clock430', 'clock5', 'clock530', 'clock6', 'clock630', 'clock7', 'clock730', 'clock8', 'clock830', 'clock9', 'clock930', 'closed_book', 'closed_lock_with_key', 'closed_umbrella', 'cloud', 'clubs', 'cn', 'cocktail', 'coffee', 'cold_sweat', 'collision', 'computer', 'confetti_ball', 'confounded', 'confused', 'congratulations', 'construction', 'construction_worker', 'convenience_store', 'cookie', 'cool', 'cop', 'copyright', 'corn', 'couple', 'couple_with_heart', 'couplekiss', 'cow', 'cow2', 'credit_card', 'crocodile', 'crossed_flags', 'crown', 'cry', 'crying_cat_face', 'crystal_ball', 'cupid', 'curly_loop', 'currency_exchange', 'curry', 'custard', 'customs', 'cyclone', 'dancer', 'dancers', 'dango', 'dart', 'dash', 'date', 'de', 'deciduous_tree', 'department_store', 'diamond_shape_with_a_dot_inside', 'diamonds', 'disappointed', 'disappointed_relieved', 'dizzy', 'dizzy_face', 'do_not_litter', 'dog', 'dog2', 'dollar', 'dolls', 'dolphin', 'donut', 'door', 'doughnut', 'dragon', 'dragon_face', 'dress', 'dromedary_camel', 'droplet', 'dvd', 'e-mail', 'ear', 'ear_of_rice', 'earth_africa', 'earth_americas', 'earth_asia', 'egg', 'eggplant', 'eight', 'eight_pointed_black_star', 'eight_spoked_asterisk', 'electric_plug', 'elephant', 'email', 'end', 'envelope', 'es', 'euro', 'european_castle', 'european_post_office', 'evergreen_tree', 'exclamation', 'expressionless', 'eyeglasses', 'eyes', 'facepunch', 'factory', 'fallen_leaf', 'family', 'fast_forward', 'fax', 'fearful', 'feelsgood', 'feet', 'ferris_wheel', 'file_folder', 'finnadie', 'fire', 'fire_engine', 'fireworks', 'first_quarter_moon', 'first_quarter_moon_with_face', 'fish', 'fish_cake', 'fishing_pole_and_fish', 'fist', 'five', 'flags', 'flashlight', 'floppy_disk', 'flower_playing_cards', 'flushed', 'foggy', 'football', 'fork_and_knife', 'fountain', 'four', 'four_leaf_clover', 'fr', 'free', 'fried_shrimp', 'fries', 'frog', 'frowning', 'fu', 'fuelpump', 'full_moon', 'full_moon_with_face', 'game_die', 'gb', 'gem', 'gemini', 'ghost', 'gift', 'gift_heart', 'girl', 'globe_with_meridians', 'goat', 'goberserk', 'godmode', 'golf', 'grapes', 'green_apple', 'green_book', 'green_heart', 'grey_exclamation', 'grey_question', 'grimacing', 'grin', 'grinning', 'guardsman', 'guitar', 'gun', 'haircut', 'hamburger', 'hammer', 'hamster', 'hand', 'handbag', 'hankey', 'hash', 'hatched_chick', 'hatching_chick', 'headphones', 'hear_no_evil', 'heart', 'heart_decoration', 'heart_eyes', 'heart_eyes_cat', 'heartbeat', 'heartpulse', 'hearts', 'heavy_check_mark', 'heavy_division_sign', 'heavy_dollar_sign', 'heavy_exclamation_mark', 'heavy_minus_sign', 'heavy_multiplication_x', 'heavy_plus_sign', 'helicopter', 'herb', 'hibiscus', 'high_brightness', 'high_heel', 'hocho', 'honey_pot', 'honeybee', 'horse', 'horse_racing', 'hospital', 'hotel', 'hotsprings', 'hourglass', 'hourglass_flowing_sand', 'house', 'house_with_garden', 'hurtrealbad', 'hushed', 'ice_cream', 'icecream', 'id', 'ideograph_advantage', 'imp', 'inbox_tray', 'incoming_envelope', 'information_desk_person', 'information_source', 'innocent', 'interrobang', 'iphone', 'it', 'izakaya_lantern', 'jack_o_lantern', 'japan', 'japanese_castle', 'japanese_goblin', 'japanese_ogre', 'jeans', 'joy', 'joy_cat', 'jp', 'key', 'keycap_ten', 'kimono', 'kiss', 'kissing', 'kissing_cat', 'kissing_closed_eyes', 'kissing_face', 'kissing_heart', 'kissing_smiling_eyes', 'koala', 'koko', 'kr', 'large_blue_circle', 'large_blue_diamond', 'large_orange_diamond', 'last_quarter_moon', 'last_quarter_moon_with_face', 'laughing', 'leaves', 'ledger', 'left_luggage', 'left_right_arrow', 'leftwards_arrow_with_hook', 'lemon', 'leo', 'leopard', 'libra', 'light_rail', 'link', 'lips', 'lipstick', 'lock', 'lock_with_ink_pen', 'lollipop', 'loop', 'loudspeaker', 'love_hotel', 'love_letter', 'low_brightness', 'm', 'mag', 'mag_right', 'mahjong', 'mailbox', 'mailbox_closed', 'mailbox_with_mail', 'mailbox_with_no_mail', 'man', 'man_with_gua_pi_mao', 'man_with_turban', 'mans_shoe', 'maple_leaf', 'mask', 'massage', 'meat_on_bone', 'mega', 'melon', 'memo', 'mens', 'metal', 'metro', 'microphone', 'microscope', 'milky_way', 'minibus', 'minidisc', 'mobile_phone_off', 'money_with_wings', 'moneybag', 'monkey', 'monkey_face', 'monorail', 'moon', 'mortar_board', 'mount_fuji', 'mountain_bicyclist', 'mountain_cableway', 'mountain_railway', 'mouse', 'mouse2', 'movie_camera', 'moyai', 'muscle', 'mushroom', 'musical_keyboard', 'musical_note', 'musical_score', 'mute', 'nail_care', 'name_badge', 'neckbeard', 'necktie', 'negative_squared_cross_mark', 'neutral_face', 'new', 'new_moon', 'new_moon_with_face', 'newspaper', 'ng', 'nine', 'no_bell', 'no_bicycles', 'no_entry', 'no_entry_sign', 'no_good', 'no_mobile_phones', 'no_mouth', 'no_pedestrians', 'no_smoking', 'non-potable_water', 'nose', 'notebook', 'notebook_with_decorative_cover', 'notes', 'nut_and_bolt', 'o', 'o2', 'ocean', 'octocat', 'octopus', 'oden', 'office', 'ok', 'ok_hand', 'ok_woman', 'older_man', 'older_woman', 'on', 'oncoming_automobile', 'oncoming_bus', 'oncoming_police_car', 'oncoming_taxi', 'one', 'open_file_folder', 'open_hands', 'open_mouth', 'ophiuchus', 'orange_book', 'outbox_tray', 'ox', 'page_facing_up', 'page_with_curl', 'pager', 'palm_tree', 'panda_face', 'paperclip', 'parking', 'part_alternation_mark', 'partly_sunny', 'passport_control', 'paw_prints', 'peach', 'pear', 'pencil', 'pencil2', 'penguin', 'pensive', 'performing_arts', 'persevere', 'person_frowning', 'person_with_blond_hair', 'person_with_pouting_face', 'phone', 'pig', 'pig2', 'pig_nose', 'pill', 'pineapple', 'pisces', 'pizza', 'plus1', 'point_down', 'point_left', 'point_right', 'point_up', 'point_up_2', 'police_car', 'poodle', 'poop', 'post_office', 'postal_horn', 'postbox', 'potable_water', 'pouch', 'poultry_leg', 'pound', 'pouting_cat', 'pray', 'princess', 'punch', 'purple_heart', 'purse', 'pushpin', 'put_litter_in_its_place', 'question', 'rabbit', 'rabbit2', 'racehorse', 'radio', 'radio_button', 'rage', 'rage1', 'rage2', 'rage3', 'rage4', 'railway_car', 'rainbow', 'raised_hand', 'raised_hands', 'raising_hand', 'ram', 'ramen', 'rat', 'recycle', 'red_car', 'red_circle', 'registered', 'relaxed', 'relieved', 'repeat', 'repeat_one', 'restroom', 'revolving_hearts', 'rewind', 'ribbon', 'rice', 'rice_ball', 'rice_cracker', 'rice_scene', 'ring', 'rocket', 'roller_coaster', 'rooster', 'rose', 'rotating_light', 'round_pushpin', 'rowboat', 'ru', 'rugby_football', 'runner', 'running', 'running_shirt_with_sash', 'sa', 'sagittarius', 'sailboat', 'sake', 'sandal', 'santa', 'satellite', 'satisfied', 'saxophone', 'school', 'school_satchel', 'scissors', 'scorpius', 'scream', 'scream_cat', 'scroll', 'seat', 'secret', 'see_no_evil', 'seedling', 'seven', 'shaved_ice', 'sheep', 'shell', 'ship', 'shipit', 'shirt', 'shit', 'shoe', 'shower', 'signal_strength', 'six', 'six_pointed_star', 'ski', 'skull', 'sleeping', 'sleepy', 'slot_machine', 'small_blue_diamond', 'small_orange_diamond', 'small_red_triangle', 'small_red_triangle_down', 'smile', 'smile_cat', 'smiley', 'smiley_cat', 'smiling_imp', 'smirk', 'smirk_cat', 'smoking', 'snail', 'snake', 'snowboarder', 'snowflake', 'snowman', 'sob', 'soccer', 'soon', 'sos', 'sound', 'space_invader', 'spades', 'spaghetti', 'sparkler', 'sparkles', 'sparkling_heart', 'speak_no_evil', 'speaker', 'speech_balloon', 'speedboat', 'squirrel', 'star', 'star2', 'stars', 'station', 'statue_of_liberty', 'steam_locomotive', 'stew', 'straight_ruler', 'strawberry', 'stuck_out_tongue', 'stuck_out_tongue_closed_eyes', 'stuck_out_tongue_winking_eye', 'sun_with_face', 'sunflower', 'sunglasses', 'sunny', 'sunrise', 'sunrise_over_mountains', 'surfer', 'sushi', 'suspect', 'suspension_railway', 'sweat', 'sweat_drops', 'sweat_smile', 'sweet_potato', 'swimmer', 'symbols', 'syringe', 'tada', 'tanabata_tree', 'tangerine', 'taurus', 'taxi', 'tea', 'telephone', 'telephone_receiver', 'telescope', 'tennis', 'tent', 'thought_balloon', 'three', 'thumbsdown', 'thumbsup', 'ticket', 'tiger', 'tiger2', 'tired_face', 'tm', 'toilet', 'tokyo_tower', 'tomato', 'tongue', 'top', 'tophat', 'tractor', 'traffic_light', 'train', 'train2', 'tram', 'triangular_flag_on_post', 'triangular_ruler', 'trident', 'triumph', 'trolleybus', 'trollface', 'trophy', 'tropical_drink', 'tropical_fish', 'truck', 'trumpet', 'tshirt', 'tulip', 'turtle', 'tv', 'twisted_rightwards_arrows', 'two', 'two_hearts', 'two_men_holding_hands', 'two_women_holding_hands', 'u5272', 'u5408', 'u55b6', 'u6307', 'u6708', 'u6709', 'u6e80', 'u7121', 'u7533', 'u7981', 'u7a7a', 'uk', 'umbrella', 'unamused', 'underage', 'unlock', 'up', 'us', 'v', 'vertical_traffic_light', 'vhs', 'vibration_mode', 'video_camera', 'video_game', 'violin', 'virgo', 'volcano', 'vs', 'walking', 'waning_crescent_moon', 'waning_gibbous_moon', 'warning', 'watch', 'water_buffalo', 'watermelon', 'wave', 'wavy_dash', 'waxing_crescent_moon', 'waxing_gibbous_moon', 'wc', 'weary', 'wedding', 'whale', 'whale2', 'wheelchair', 'white_check_mark', 'white_circle', 'white_flower', 'white_square', 'white_square_button', 'wind_chime', 'wine_glass', 'wink', 'wink2', 'wolf', 'woman', 'womans_clothes', 'womans_hat', 'womens', 'worried', 'wrench', 'x', 'yellow_heart', 'yen', 'yum', 'zap', 'zero', 'zzz']
\ No newline at end of file
diff --git a/assets/styles/app.sass b/assets/styles/app.sass
index 24cc1be4..a44c2c77 100644
--- a/assets/styles/app.sass
+++ b/assets/styles/app.sass
@@ -22,7 +22,7 @@ li
   padding: 0
 
 .github-link
-  background: transparent url(/images/icons/github.png) center right no-repeat
+  background: transparent url(/images/icons/github.svg) center right no-repeat
   background-size: 12px
   opacity: 1
   padding-right: 16px
@@ -30,4 +30,4 @@ li
   &.only-on-hover
     background-image: none
   &.only-on-hover:hover
-    background-image: url(/images/icons/github.png)
+    background-image: url(/images/icons/github.svg)
diff --git a/assets/styles/app/loading.sass b/assets/styles/app/loading.sass
index 2f2a2584..a34b7f22 100644
--- a/assets/styles/app/loading.sass
+++ b/assets/styles/app/loading.sass
@@ -6,7 +6,7 @@
     padding-right: 25px
     font-size: $font-size-small
     color: $color-text-lighter
-    background: inline-image('ui/spinner.gif') no-repeat right 4px
+    background: inline-image('ui/spinner.svg') no-repeat right 4px
 
   .loading
     display: none
@@ -15,5 +15,5 @@ span.loading, span.saving
   padding: 0 25px 0 0
   font-size: $font-size-small
   color: $color-text-lighter
-  background: inline-image('ui/spinner.gif') no-repeat right 4px
+  background: inline-image('ui/spinner.svg') no-repeat right 4px
 
diff --git a/assets/styles/app/popup.sass b/assets/styles/app/popup.sass
index 1774dcd7..708741e1 100644
--- a/assets/styles/app/popup.sass
+++ b/assets/styles/app/popup.sass
@@ -6,7 +6,7 @@
   width: 16px
   margin: -4px 0 0 3px
   vertical-align: middle
-  background: inline-image('ui/help.png') no-repeat scroll 0 3px transparent
+  background: inline-image('ui/help.svg') no-repeat scroll 0 3px transparent
   cursor: pointer
 
 .popup
@@ -24,7 +24,7 @@
     top: 10px
     width: 16px
     height: 16px
-    background: inline-image('ui/close.png') no-repeat 0 0
+    background: inline-image('ui/close.svg') no-repeat 0 0
 
   h4
     margin-top: 0
diff --git a/assets/styles/layout.sass b/assets/styles/layout.sass
index 3e9faa0c..cd38170d 100644
--- a/assets/styles/layout.sass
+++ b/assets/styles/layout.sass
@@ -65,7 +65,8 @@ html, body
     margin-right: 1px
     text-indent: -200px
     overflow: hidden
-    background: inline-image('ui/clock.png') no-repeat 0px 3px
+    background: inline-image('ui/clock.svg') no-repeat 0px 3px
+    background-size: contain
 
 @media screen and (max-width: 1310px)
   #left .finished_at_label
diff --git a/assets/styles/left.sass b/assets/styles/left.sass
index 4a80d978..8f95f077 100644
--- a/assets/styles/left.sass
+++ b/assets/styles/left.sass
@@ -14,5 +14,6 @@
       font-size: $font-size-small
       @include box-sizing(border-box)
       border: 0
-      background: $color-bg-input inline-image('ui/search.png') no-repeat right 8px
+      background: $color-bg-input inline-image('ui/search.svg') no-repeat 95%
+      background-size: 5%
 
diff --git a/assets/styles/left/list.sass b/assets/styles/left/list.sass
index e81d8d9d..8750396d 100644
--- a/assets/styles/left/list.sass
+++ b/assets/styles/left/list.sass
@@ -48,7 +48,7 @@
       width: 10px
       height: 10px
       margin-right: 5px
-      background-image: inline-image('ui/clock.png')
+      background-image: inline-image('ui/clock.svg')
       background-size: cover
 
     .finished-icon
@@ -56,7 +56,7 @@
       width: 10px
       height: 10px
       margin-right: 5px
-      background-image: inline-image('ui/cal.png')
+      background-image: inline-image('ui/cal.svg')
       background-size: cover
 
     .info
@@ -103,10 +103,10 @@
     margin-left: -4px
     padding-left: 52px
     &.user
-      background-image: inline-image('ui/user.png')
+      background-image: inline-image('ui/user.svg')
       background-position: 29px 18px
     &.organization
-      background-image: inline-image('ui/org.png')
+      background-image: inline-image('ui/org.svg')
       background-position: 24px 18px
     .summary
       margin-left: 0
diff --git a/assets/styles/main/log.sass b/assets/styles/main/log.sass
index 977d2cf7..5e7dd6b7 100644
--- a/assets/styles/main/log.sass
+++ b/assets/styles/main/log.sass
@@ -55,7 +55,7 @@ pre#log
 
     // &.active
     p:first-of-type
-      background: $color-bg-log-fold inline-image('ui/log.fold.open.2.png') no-repeat 8px 3px
+      background: $color-bg-log-fold inline-image('ui/log.fold.open.2.svg') no-repeat 8px 3px
       &.highlight
         background-color: $color-bg-log-fold-highlight
 
@@ -63,7 +63,7 @@ pre#log
       visibility: visible
       height: auto
       min-height: 16px
-      background-image: inline-image('ui/log.fold.closed.3.png')
+      background-image: inline-image('ui/log.fold.closed.3.svg')
 
     .fold-name
       position: absolute
@@ -150,4 +150,4 @@ pre#log
     padding-right: 16px
     text-align: right
     color: #999
-    background: inline-image('ui/to-top.png') no-repeat right 6px
+    background: inline-image('ui/workers-close.svg') no-repeat right 6px
diff --git a/assets/styles/maximize.sass b/assets/styles/maximize.sass
index da4278d4..dd907a8a 100644
--- a/assets/styles/maximize.sass
+++ b/assets/styles/maximize.sass
@@ -15,7 +15,7 @@
     left: -20px
     width: 20px
     height: 20px
-    background-image: inline-image('ui/slider-open.png')
+    background-image: inline-image('ui/slider-open.svg')
     background-position: 6px 5px
     @include border-bottom-left-radius(4px)
 
diff --git a/assets/styles/right/lists.sass b/assets/styles/right/lists.sass
index bb23ea6e..0ad786c8 100644
--- a/assets/styles/right/lists.sass
+++ b/assets/styles/right/lists.sass
@@ -49,9 +49,9 @@
     width: 10px
     height: 10px
     cursor: pointer
-    background: inline-image('ui/workers-open.png') no-repeat left 5px
+    background: inline-image('ui/workers-open.svg') no-repeat left 5px
     &.open
-      background-image: inline-image('ui/workers-close.png')
+      background-image: inline-image('ui/workers-close.svg')
 
   #workers li ul
     display: none
diff --git a/assets/styles/top.sass b/assets/styles/top.sass
index 07c2c4c8..cee4c573 100644
--- a/assets/styles/top.sass
+++ b/assets/styles/top.sass
@@ -11,7 +11,7 @@
     height: 30px
     margin: 12px 40px 0 22px
     text-indent: -9999px
-    background: inline-image('ui/logo.png') no-repeat
+    background: inline-image('ui/logo.svg') no-repeat
     background-size: cover
 
   ul
@@ -81,7 +81,7 @@
       display: block
 
     .signing-in
-      background: inline-image('ui/spinner.gif') no-repeat 110px 22px
+      background: inline-image('ui/spinner.svg') no-repeat 110px 22px
 
     img
       position: absolute
diff --git a/config.ru b/config.ru
index b9a55f43..fff7ffb2 100644
--- a/config.ru
+++ b/config.ru
@@ -30,5 +30,6 @@ run Travis::Web::App.build(
   api_endpoint: ENV['API_ENDPOINT'],
   pusher_key:   ENV['PUSHER_KEY'],
   ga_code:      ENV['GA_CODE'],
-  root:         File.expand_path('../public', __FILE__)
+  root:         File.expand_path('../public', __FILE__),
+  server_start: Time.now
 )
diff --git a/lib/travis/web/app.rb b/lib/travis/web/app.rb
index d459eee3..0fc33d75 100644
--- a/lib/travis/web/app.rb
+++ b/lib/travis/web/app.rb
@@ -1,6 +1,5 @@
 require 'rack'
 require 'rack/ssl'
-require 'rack/cache'
 require 'rack/protection'
 require 'delegate'
 require 'time'
@@ -35,7 +34,6 @@ class Travis::Web::App
       builder = Rack::Builder.new
       if options[:environment] == 'production'
         builder.use Rack::SSL
-        # builder.use Rack::Cache
       end
       builder.use Rack::Deflater
       builder.use Rack::Head
@@ -49,21 +47,23 @@ class Travis::Web::App
     end
   end
 
-  attr_reader :routers, :version, :last_modified, :age, :options, :root
+  attr_reader :routers, :version, :age, :options, :root, :server_start
 
   def initialize(options = {})
-    @options       = options
-    @root          = options.fetch(:root)
-    @version       = File.read File.expand_path('version', root)
-    @last_modified = Time.now
-    @age           = 60 * 60 * 24 * 365
-    @routers       = { default: create_router }
+    @options      = options
+    @server_start = options.fetch(:server_start)
+    @root         = options.fetch(:root)
+    @version      = File.read File.expand_path('version', root)
+    @age          = 60 * 60 * 24 * 365
+    @routers      = { default: create_router }
   end
 
   def call(env)
     name = env['travis.alt'] || :default
     routers[name] ||= create_router(alt: name)
-    routers[name].call(env)
+    route = routers[name].call(env)
+    route[1]["Date"] = Time.now.httpdate
+    route
   end
 
   private
@@ -84,13 +84,12 @@ class Travis::Web::App
       set_config(content, options) if config_needed?(file)
       headers = {
         'Content-Length'   => content.bytesize.to_s,
-        'Content-Location' => path_for(file),
         'Cache-Control'    => cache_control(file),
         'Content-Location' => path_for(file),
         'Content-Type'     => mime_type(file),
-        'ETag'             => version,
-        'Last-Modified'    => last_modified.httpdate,
-        'Expires'          => (last_modified + age).httpdate,
+        'ETag'             => %Q{"#{version}"},
+        'Last-Modified'    => server_start.httpdate,
+        'Expires'          => (server_start + age).httpdate,
         'Vary'             => vary_for(file)
       }
       [ 200, headers, [content] ]
@@ -100,10 +99,6 @@ class Travis::Web::App
       Dir.glob(File.join(root, '**/*')) { |file| yield file if File.file?(file) }
     end
 
-    def prefix?(file)
-      file =~ /^(styles|scripts)\//
-    end
-
     def config_needed?(file)
       index?(file) || file.end_with?('spec.html')
     end
@@ -130,7 +125,6 @@ class Travis::Web::App
 
     def path_for(file)
       file = file.sub("#{root}/", '')
-      file = File.join(version, file) if prefix?(file)
       file = "" if index?(file)
       "/#{file}"
     end
@@ -145,7 +139,7 @@ class Travis::Web::App
       end
 
       string.gsub! %r{(src|href)="(?:\/?)((styles|scripts)\/[^"]*)"} do
-        %(#{$1}=#{opts[:alt] ? "#{S3_URL}/#{opts[:alt]}/#{$2}" : "/#{version}/#{$2}"})
+        %(#{$1}=#{opts[:alt] ? "#{S3_URL}/#{opts[:alt]}/#{$2}":"/#{$2}"})
       end
     end
 end
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diff --git a/public/images/emoji/airplane.png b/public/images/emoji/airplane.png
deleted file mode 100644
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