Return the position in the queue when adding via URI
Remove no longer available class
Remove get_folder method from the documentation

This method does no longer exist
Merge pull request #190 from robwebset/AddUriToQueue

Return the position in the queue when adding via URI
Merge pull request #200 from flavio/cleanup

Cleanup
fix build
re-enable PyPy target for Travis-CI
Support for returning full Album Art URI's
Merge pull request #205 from SoCo/pypy

Re-enable PyPy target for Travis-CI
Merge pull request #207 from robwebset/AlbumArtUri

Support for returning full Album Art URI's
Added item_id property to Sonos' playlist class

The original commit was made by David "DPH".
Made possible to create a Sonos' playlist

Allowed the creationg of new Sonos' playlists.
Made possible to add tracks to a Sonos' playlist
Fixed pylint errors and warnings
Updated inline documentation
Code refactoring

Renamed `add_track_to_sonos_playlist` to `add_item_to_sonos_playlist`.