svn merge -r 80024:80160 svn+ssh://svn.lindenlab.com/svn/linden/branches/Branch_1-19-1-Server

Port fixes for:
* DEV-10609 Checkboxes in About Land untick when selected
* Extend the sim node regex to support sim1-telstra.durga.lindenlab.com for colo testing.
* Provide "version_valid" for each version when querying a channel
* Update to latest eventlet r87, to handle multi-character terminators split across read buffers
* DEV-10487 Log viewer stats sim and php fix
* QAR-288: Pull in crash fixes from LSL bytecode parsing