- Added cli options for mpd host and port, music dir

 - Better detection of embedded covers

 - Compatibility with python-mpd2 1.0.0

 - Fixed volume reporting with newer mpd versions

 - Fix notification system initialization

 - Notify urgengy can be configured

 - "Playing" and "Paused" notifications now show song information (#71).

 - Path to config file can be changed via command line.

 - There is a hidden option to change the D-Bus service name, for advanced
   multi-instance configurations.