svn merge -r94413:95195 svn+ssh://svn.lindenlab.com/svn/linden/branches/Branch_1-24-Server -> release

Merging various fixes from 1.24 Server.

From 1.23:
* DEV-18957: SCUT: Enable test.py to run tests agains a grid database

From 1.24, the UPCOMING production branch:
* DEV-18934 VWR-8519: 1.21 nightly:  World > Region/Estate > Debug > Get Top Scripts crashes viewer
* Sanity checking build settings before packaging binaries
* DEV-19810 Updated libmono on linux with support for signal chaining
* Remove gdb references to gPumpFile and gPumpLine in crash_reporter.py
* DEV-19397: Changed the signature for remote_data to for Mono scripts
* DEV-19396: Steal signal handlers back from Mono on error.
* DEV-19396: attach mono thread if necessary during writeState
* DEV-19396: Allow mono to handle managed SEGV signals during emergency save
* DEV-19396: Disable GC while writing the simstate during a crash
* DEV-19550: Make viewer crash reporter handle different binary debug file names
* Defensively protect against responders not being in list and give a warning rather than crash.
* Fix simulator crash in shutdown error handling that also causes error stacks to go unreported
* DEV-19752 QAR-834 Remove Community Standards window from startup. Set the "critical message" name on agni to NULL.
* Minor traceback fixes in backbone for multiagentchat
* Removed some mono debug spam
* DEV-19239: Group members receives an error upon opening group chat if join group chat was disabled then reenabled.
* DEV-19809 Harden llGetNextEmail to bad params
* DEV-17967 fixed null string and keys passing to lib funcs
* Several small fixes for farm deploy tools and automated build system
* Sync indra/agent/auth.py with interop-5 branch, and update status codes