Fixes issue #60
Minor tweak
During extend/import playlist videos are added to stream
Added helper add_new_video, added 'new-video' permission in channel
Fixed new-video permission in channel.html
Fixed merge conflicts
Added _external for url_for, fixed spelling
Fixed missing playlist variable
Fpass playlist as none in stream_new_video
Fchecks for stream_playlist is same as playlist
Merge pull request #66 from hasgeek/issue-60

Issue 60