Removing from playlist implemented
Add 'season' property to episode
Merge branch 'master' into playlists
Add show title and episode number to Episode object
Merging changes from master
Added __eq__() methods for Episode, Movie and Video
Merge branch 'master' into playlists
Added __contains__() method for Playlist class
Add clear() method to Playlist class
Add .duration property (in sections) to Video class + convert .offset to seconds
Merge branch 'master' into playlists