Limit jquery-ui requires to what we actually use

This commit is a smoke test to run CI and see if we get back any JS
errors.

app/assets/javascripts/application.js.coffee

@@ -5,7 +5,10 @@
 # the compiled file.
 #
 #= require jquery
-#= require jquery-ui
+#= require jquery-ui/autocomplete
+#= require jquery-ui/datepicker
+#= require jquery-ui/effect-highlight
+#= require jquery-ui/sortable
 #= require jquery_ujs
 #= require jquery.cookie
 #= require jquery.endless-scroll