[CDF-359] - CommentsComponent refresh button doesn't work in IE8, also adding and deleting comments doesn't refresh comments section
  - added cache-buster to force IE8 to not use previously cached requests
  - added test cases for comments component
  - fixed bug in select component tests exposed by comments tests
Merge pull request #239 from afrjorge/CDF-359

[CDF-359] - CommentsComponent refresh button doesn't work in IE8, also a...
Merge branch 'master' of https://github.com/webdetails/cdf into tmp