EFFECTIVE MERGE: svn merge -r 65485:66133...

EFFECTIVE MERGE: svn merge -r 65485:66133 svn+ssh://svn/svn/linden/branches/maintenance into release
This includes fixes to the maintenance-r66133 branch, and sync'ing up with release@r66392

ACTUAL MERGE: svn merge -r 66394:66435 svn+ssh://svn/svn/linden/branches/release-r66392 into release
EQUIVALENT TO: svn merge -r 65485:66434 svn+ssh://svn/svn/linden/branches/maintenance-r66133 into release (plus branch sync'ing)