Refactored with basic bindings for playlist table.
Implemented drag and drop in Playlist table.
Implemented playlist item loading.
Renamed PlaylistController.
Fixed document window connection.
Refactored error dialogue when no song file found.
Added global selected song property.
Basic Library listing functionality.
Code optimizations to Library and Media thumbnails.
Added support for drag and drop between Library and Playlist.
Declared support for autosavesInPlace.
Added basic SlideController with bindings.
Updated to new playlist object.
Fixed delete key event.
Merge pull request #4 from Ignigena/playlist-bindings

Modernized playlist and library views with proper bindings.