Added functional action to playlist item removed undo callback. New method was needed in playlist allowing to insert item on specified index.
From now on, notification will be closed when user presses 'undo' button
Added undo action to playlist cleared notification
Removed unecessary code line from playlist view controller
Merge branch 'feature-add-undo-actions' into develop
Fixed scrobbling issue after creating new playlist
Merge branch 'fix-unwanted-scrobbler-notification' into develop
Added playlist repository which is used in playlist service to save/load playlists
New method added to playlist class to detect if playlist is empty. Playlist service now informs user that no playlist has been loaded. Some other corrections to ensure that playlists are saved correctly
Changed method name
Fixed grunt warnings
Added new persistent playlist class. Playlist state is saved before each change action. It can be easily restored
Minor correction in tutorial's description
Some minor code cleanup changes
Correction needed to restore playlist cleare event
Merge branch 'feature-add-playlist-repository' into develop
Added missing references to the spec runner file
Added mock for user notifier class. Also added missing references to the spec file
Added namespace to helper classes
Changes in tests namespace. Added mock for playlist repository'