added default avatar and hid hiring

assets/images/ui/default-avatar.svg

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 16.0.4, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 width="50px" height="50px" viewBox="0 0 50 50" enable-background="new 0 0 50 50" xml:space="preserve">
+<circle fill="#B1B1A7" cx="25" cy="25" r="24"/>
+<circle fill="#E7EAE8" cx="24.998" cy="25" r="12"/>
+</svg>

assets/scripts/app/templates/layouts/top.hbs

@@ -24,9 +24,11 @@
       <li><a href="http://docs.travis-ci.com/imprint.html" alt="Imprint">Imprint</a></li>
     </ul>
   </li>
+  <!-- hiding for now 
   <li>
     <a href="https://travisci.workable.com" class="werehiring" target="_blank">We're Hiring!</a>
   </li>
+   hiding for now -->
   <li class="traviscicom">
     <a href="http://travis-ci.com">Travis CI for Private Repositories</a>
   </li>

assets/styles/top.sass

@@ -61,7 +61,6 @@
 
       li
         display: block
-        &:last-child a:hover
 
       a
         display: block