tern: don't overwrite needs_sync from tern
Merge remote-tracking branch 'origin/dev' into dev
1905: Disable deletion of subtitles in the admin
Um, borders.
Merge branch 'dev' of github.com:pculture/unisubs into dev
Reorganizing the subtitle-list JS a bit.
Reorganizing a bit more of the new subtitle editor JS.
1904: Fixed case when translation is from a languae where subs were added
Log something useful when unilangs cant parse code
1916: Youtube team videos don't need credits
Revert "1916: Youtube team videos don't need credits"

This reverts commit 5304500d622332a02ca06866cdb5e54743b9093b.
1916: Youtube team videos dont need credits take 2
added missing pytz requirement
fixed merge conflicts with requirements
tern: skip languages with blank language codes for now
Merge remote-tracking branch 'origin/dev' into dev
1916: Add credit functions should be safe

The add credit functions now determinte whether or not the credit should be
added.
tern: don't buffer log output, just write it!
1916: Add script to remove broken YT descs.
tern: log and skip duplicate languages for now