Messy temporary patch for Banshee track listing.

[tristil@…]

Might just want to wait until Banshee implements signals, but this code works.

[asterix]

(In [731ac3244f1d2a1a435f77cf960c18eef76dd0f0]) [tristil] we now detect banshee track changement. fixes #2940

[tristil@…]

music_track_listener for Banshee was crashing internally if Banshee was closed while listening. Now it picks up again if you reopen Banshee. In this diff, music_track_listener also detects whether track is paused and clears status message. Support is there if other listeners want to use this. Made the code even uglier, but it works, I swear :).

[tristil@…]

Second diff

[asterix]

(In [79c4217d540508e0de2ccc660ddf6820aac46d6c]) [tristil] better banshee music player support. fixes #2940

[roidelapluie]

(In [80364c64b080e0fd18e86d5f1dc25a426eb4e209]) 0.11.2: [tristil] better banshee music player support. fixes #2940