Merge branch 'master' into opener-to-ydl

test/test_all_urls.py

test/test_playlists.py

test/test_youtube_lists.py

youtube_dl/YoutubeDL.py

youtube_dl/__init__.py

youtube_dl/extractor/__init__.py

youtube_dl/extractor/bandcamp.py

youtube_dl/extractor/brightcove.py

youtube_dl/extractor/clipfish.py

youtube_dl/extractor/collegehumor.py

youtube_dl/extractor/common.py

youtube_dl/extractor/howcast.py

youtube_dl/extractor/mixcloud.py

youtube_dl/extractor/niconico.py

youtube_dl/extractor/streamcloud.py

youtube_dl/extractor/viki.py

youtube_dl/extractor/youtube.py

youtube_dl/update.py

youtube_dl/utils.py

youtube_dl/version.py