Show notification when outputs changed.
BUG: 552


git-svn-id: http://cantata.googlecode.com/svn/trunk@5469 b1e49159-3266-923f-9c3e-04f16369770a
Connect MPRIS stopAfterCurrent signal to correct action.


git-svn-id: http://cantata.googlecode.com/svn/trunk@5470 b1e49159-3266-923f-9c3e-04f16369770a
Add prev/play/pause/etc actions to Unity launcher.


git-svn-id: http://cantata.googlecode.com/svn/trunk@5471 b1e49159-3266-923f-9c3e-04f16369770a