change "debug packet" command to "debug lludp packet" to conform with other "debug lludp" options

also moves the implementing code into LLUDPServer.cs along with other debug commands from OpenSim.cs
gets all debug lludp commands to only activate for the set scene if not root
HG Friends: debug an issue where the friends data stored in the DB is incomplete.
Merge branch 'master' of ssh://opensimulator.org/var/git/opensim
Revert "HG Friends: debug an issue where the friends data stored in the DB is incomplete."

This reverts commit 27cdfb7b840423cf8cee08988dc487eeb34d71c7.
Add --default option to "debug lludp packet" command to allow packet logging to be performed immediately from client start
HG Friends: migration #3 is failing on some installations of MySql. Setting the table to InnoDB seems to fix the problem.
HG Friends: this was commented some commits ago, but it shouldn't have been.
Now trying to find a cause of freeze at login related to friends status notifications.
More debug related to the previous commit
Merge branch 'master' of ssh://opensimulator.org/var/git/opensim
More debug, same issue
Merge branch 'master' of ssh://opensimulator.org/var/git/opensim
More debug, same issue
With diva's permission, temporarily reinsert Unknown UserUMMAU3 to make sure that GUN7 failure has largely disappeared.

Unknown UserUMMAU3 insertion should definitely be removed down the line.
However, I would like a little more time to check the GUN* reduction first, since removing UMMAU3 will make these failures appear as GUN7 instead.
Also bumps GUN6 -> GUN7 and UMMAU2 -> UMMAU3
Merge branch 'master' of ssh://opensimulator.org/var/git/opensim
Same freeze issue, now checking if it's in estate
Merge branch 'master' of ssh://opensimulator.org/var/git/opensim
Revert "Same freeze issue, now checking if it's in estate"

This reverts commit ca380ec0397b28a3d7a3f2c60aeb6eaf1153be31.
WARNING: BRUTE FORCE DEBUG. AVOID USING THIS COMMIT.
Revert "WARNING: BRUTE FORCE DEBUG. AVOID USING THIS COMMIT."

This reverts commit c95a23863ab51810ccc01afd3dd641c18a183305.