Refractored _create_user_and_login to two methods

_create_user and
self._login
PEP8
Refractored _create_playlist
Added __unicode__ to Playlist
Added __unicode__ to Video
PEP8 on watcher.models.py
Added Playlist and Video to admin site
Added WatchedVideosTest functional test and fixtures
Wrote WatchedVideo test
Added redirect view
Added test_video_gets_marked_watched
Videos now get marked as watched when clicked
Added Delete Playlist function
Added coverage to gitignore
Added test_invalid_link