Add cliphunter extractor
Minor fixes

Remove empty description
Set correct md5 test
Added support for Discovery Issue #2227
Merge branch 'cliphunter' of https://github.com/pornophage/youtube-dl
[cliphunter] Simplify
Merge remote-tracking branch 'sahutd/master'
[cliphunter] Simplify (#2233)
[discovery] Extract more info and simplify
Merge remote-tracking branch 'origin/master'
Add antigen compatible plugin description
[ard] Support multiple formats (Closes #2247)
release 2014.01.27.2
[la7] Skip test on travis
[rutube] Add support for channels and movies
[brightcove] Parse URL from meta element if available (Fixes #2253)
VALID_URL changed to match different kinds of Tumblr-URLs
[rutube] Improve video extractor
[rutube] Add channel test
[rutube] Add support for user videos
[imdb] Fix duplicated entries bug