restructured routing to get rid of callback warnings
Updated spotify_web
Fixed problem in create_track_object() which caused slow playlist loading
python logging from 'requests' is now redirected to plex logs
Added cachecontrol (v0.10.0)
Updated spotify_web
Implemented caching on image request method, added support for pre-selected images (so we don't have to re-request media)
Added image pre-selection to artists and albums, fixed bug when no images are available
Merge branch 'feature/image-caching' into develop
Updated spotify_web
Searching displays albums, tracks and playlists now

 - Searching now supports displaying albums, track and playlists
 - Added support for loading public playlists
Search media counts are now localized, updated spotify_web
Fixed bug when adding album years, switched to using correct Artist/Album objects, added art/backgrounds to objects.
Updated spotify_web
Updated plugin to work with new spotify_web search API
Updated spotify_web
Implemented search media "more results" views, restricted placeholders to PHT clients
Bumped version to 0.4
Merge branch 'release/0.4'