Merge branch 'release/0.4' into develop
Merge branch 'hotfix/0.4.1' into develop
Fixed metadata retrieval ("Now Playing" view updates correctly now)
Updated spotify_web
Speed up spotify reconnection, added duration to MediaObject
Updated spotify_web (fixes playlist folders bug)
Changed plugin_callback to avoid conflicts with 'method'
Bumped version to 0.4.2
Merge branch 'release/0.4.2'