center trigger button and some cleanup

app/styles/app/layouts/buildheader.sass

@@ -127,15 +127,15 @@
     background-color: $grey-lighter
     &:hover
       background-color: darken($grey-medium, 10)
-  .icon
-    width: .9em
-    height: 1.1em
-    vertical-align: bottom
+  .icon--trigger
+    width: .95em
+    height: 1.15em
   .icon--cancel
     width: 1em
     height: 1.05em
   .icon--codeclimate
     width: 1.2em
+    height: 1.1em
 
 .build-os.linux
   text-transform: capitalize

app/styles/app/modules/tiles.sass

@@ -45,7 +45,6 @@
   .tile-main
     height: 100%
 
-
 .tile--small
   margin-bottom: 1em
   @media #{$medium-up}
@@ -59,7 +58,6 @@
     height: 36px
     overflow: hidden
 
-// todo refactor
 .tile-main
   h2,
   small
@@ -74,9 +72,6 @@
   a:hover
     text-decoration: underline
 
-  // @media #{$xlarge-up}
-  //   @include grid-column(9)
-
 .tile-additional
   position: relative
   p, li
@@ -135,7 +130,6 @@
     position: absolute
     bottom: 0
 
-// build history etc
 .tile--build
   .tile-main
     @media #{$small-only}