Reduce test timeout for faster feedback when a test is broken

Author: mislav

test/views/qunit.erb

@@ -7,7 +7,7 @@
 
   <script type="text/javascript" src="/vendor/jquery-<%= jquery_version %>.js"></script>
   <script type="text/javascript" src="/vendor/qunit.js"></script>
-  <script type="text/javascript">QUnit.config.testTimeout = 10000</script>
+  <script type="text/javascript">QUnit.config.testTimeout = 2000</script>
   <script type="text/javascript" src="/jquery.pjax.js"></script>
   <script type="text/javascript" src="/test/unit/helpers.js"></script>
   <script type="text/javascript" src="/test/unit/pjax.js"></script>