[downloader/(common/http)] Changes calculation of the rate-limit. (Fix #2297, fix #2140, fix #595, fix #2370)
 [downloader/common] Fix possible negative sleep time in slow_down()
apply ratelimit to f4m
[vk] Added a new information extractor for pages that are a list of a user\'s videos on vk.com. It works in a same way to playlist style pages for the YT information extractors.
[vk] Updated the regex for matching user video pages. It now matches optional URL parameters too.
[vk] date_added is now extracted from the video page.
[vh1] Modernize
Merge remote-tracking branch 'origin/master'
[blip.tv:user] Modernize and add a test
[YoutubeDL] Support new _type multi_video
Update jsinterp.py

http://s.ytimg.com/yts/jsbin/html5player-zh_HK-vfl1NK6PR/html5player.js 
fix raise ExtractorError
Merge pull request #4261 from tinybug/patch-4

Update jsinterp.py
release 2014.11.21
[generic] Add support for single quotes in HTML5 videos (Fixes #4265)
[sztvhu] Modernize
[sztv] Remove useless determine_ext call
[folketinget] Add extractor (Fixes #4262)
[YoutubeDL] Fix multi_video check
release 2014.11.21.1
[vk.com] Added upload_date variable to the test cases that still work.