Removed web-app feature (not used)

_includes/head.html

@@ -38,8 +38,6 @@
 	  <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
 	  <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
 	<![endif]-->
-
-	{% include web-app.html %}
 	
 	{% include color-browser.html %}
 </head>