[GATE-192] Auto-logout sessions upon password update.
[GATE-191] Auto-logout sessions upon registration delete.
[GATE-186] Some tweaks to try to get proper encoding for ICQ offline messages.
[GATE-118] Little more work on "buddy added me" stuff.
Moved ICQ to "experimental" transports section.

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk/src/plugins/gateway@7483 b35dd754-fafc-0310-a699-88a17e54d16e