Bug fix for #214.

https://edx.lighthouseapp.com/projects/102637-studio/tickets/214-Via-Tender-Numerical-Input-answer-0-a-tolerance-is-not-accepted#ticket-214-4

common/lib/xmodule/xmodule/js/spec/problem/edit_spec.coffee

@@ -383,4 +383,4 @@ describe 'MarkdownEditingDescriptor', ->
         <p>bad tests require drivel</p>
         </div>
         </problem>""")
-    # failure tests here
+    # failure tests