kubuntu-bugs subscription cleanup

[Harald Sitter]

as part of the bug squishery today I took the opportunity to cleanup
kubuntu-bugs subscriptions.

subscriptions canceled:
- kubuntu-grub-splashimages (!supported)
- kubuntu-mobile-default-settings (!supported)
- kubuntu-mobile-meta (!supported)
- libburn (!ours)
- libgpod (!ours)
- libjpeg8-empty (!ours)
- libqalculate (!ours)
- meanwhile (!ours)
- ntrack (!ours)
- pilot-link (!ours)7
- powerdevil (now kde-workspace, !supported)
- pyenchant (!ours)
- sip4-qt3 (!supported)
- v4l-utils (!ours)
- xplanet (!ours)

subscriptions added:
- phonon-backend-vlc

if you notice anything else that should be removed/added simply drop me a note.

HS