Merge master (DRTVWR-515) into DRTVWR-516-maint
# Conflicts:
# autobuild.xml
# doc/contributions.txt
# indra/llcommon/llcoros.cpp
# indra/llmessage/llcoproceduremanager.cpp
# indra/newview/llfloaterfixedenvironment.cpp
# indra/newview/llfloaterimsessiontab.cpp