Removed sipsimple.session from exclude list as it is imported in sipsimple

darcs-hash:20090211214403-1e3d8-260cced2aeefc5bb34cf4765f190ea2e95b8e0f1
Removed vnc dependency as desktop sharing is not yet fully operational

darcs-hash:20090211214639-58252-ea1bd2b68d09592ecfe5b12bc6a039ac7bf06430