change .ui-disabled to .is-disabled
Show full body when expanding inline forum thread

This was a bug in 3af90ef.

JIRA: FOR-559
Merge pull request #3383 from edx/adam/ui-disabled-fix

change .ui-disabled to .is-disabled
Merge pull request #3386 from edx/hotfix/2014-04-17

Show full body when expanding inline forum thread
Merge branch 'release'
Add several acceptance tests for start-time and end-time.
Fix tests.