[GATE-104] CPU 100% is actually semi different from the input error messages.  CPU 100% was from threading being the suck.  Disabled threading for now.
[GATE-109] Fixed JML and msnSession to handle nickname changes.
[GATE-108] Only respond with forbidden if the person has an active fully logged in session.
Added ability to lock roster update carryovers to legacy service for things like roster syncs and such.
[GATE-47] Reenabled deletes.  Works great from MSN.  Haven't tested with others yet.

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk/src/plugins/gateway@5938 b35dd754-fafc-0310-a699-88a17e54d16e