svn merge -r 92383:92992...

svn merge -r 92383:92992 svn+ssh://svn.lindenlab.com/svn/linden/branches/Branch_1-23-Server --> release

Backport fixes and other cruft from the production branch:
* DEV-16158 make_deploy_group.py queries simulator_standby table not region conductor
* DEV-17891 SEC-118: Classifieds can be created with any amount paid for L$50
* QAR-745 Test rez object security break - SEC-104 (and possibly SEC-115)
* DEV-18161 allow_negative_balance parameter for sink operation so fraud team can dock the accounts of people who bought bad L$
* DEV-18217 Crash rate >10x higher in 1.23.2 than 1.22.4
* DEV-15570 Enable Improved IM web service
* add auth.py from interop-5 (for interop login testing on preview grid)

did-you-know-that-dataserver-is-deprecated?