move template compiler into vendor for now

in future we want to remove it and only include handlebars runtime

app/assets/javascripts/ember_include.js.erb

@@ -1,9 +1,7 @@
 <%
 if Rails.env.development? || Rails.env.test?
-  require_asset ("ember-template-compiler.js")
   require_asset ("ember.debug.js")
 else
-  require_asset ("ember-template-compiler.js")
   require_asset ("ember.prod.js")
 end
 %>

app/assets/javascripts/vendor.js

@@ -2,6 +2,7 @@
 //= require ./env
 //= require probes.js
 
+//= require ember-template-compiler
 //= require handlebars.js
 //= require i18n-patches