Fixed _follow_video_button javascript

The old code would work initially, but after you toggled the state,
then the hover logic and the dialog would be incorrect.  They would be
based off the initial state, not the changed state.
2195: fixed follow/unfollow code

Removed the automatic return True from the is_follower() tag.

Fixed the RPC code to import the new SubtitleLanguage model.  Removed
the change_title_translation() method.  It was using the old
SubtitleLanguage model and also not being called anymore (at least
according to grep).  I figure deletion is the best option here.
Remove escapejs call.

It just seems unnecessary.
Merge pull request #139 from bendk/x-2195

X 2195
getting the view notice text for testing
update the test for i2180
add a test for i2179
2176: Basic support for allowing users to download subs before the editor closes out from under you.
2176: Reset times for lock dialog.
following tests for i2195
update test description
2199: prefer approve to review tasks when unpublishing
added a test for i2199
some minor test case cleanup
2107: Fix detection of blocked languages

The reference version must be public, not only synced.
2107: Fix herp derp
fix the setup
Merge branch 'dev' of git://github.com/pculture/unisubs into dev