Merge. Refresh from viewer-release after 3.7.0 release

.hgtags

build.sh

doc/contributions.txt

indra/lib/python/indra/base/lluuid.py

indra/llaudio/llaudiodecodemgr.cpp

indra/llaudio/llaudioengine.cpp

indra/llmath/llvolume.cpp

indra/llrender/llglslshader.cpp

indra/llrender/llshadermgr.cpp

indra/llrender/llshadermgr.h

indra/llui/llbutton.cpp

indra/llui/llcommandmanager.cpp

indra/llui/llcommandmanager.h

indra/llui/lltabcontainer.cpp

indra/llui/lltabcontainer.h

indra/llui/lltoolbar.cpp

indra/llwindow/llopenglview-objc.mm

indra/newview/CMakeLists.txt

indra/newview/VIEWER_VERSION.txt

indra/newview/app_settings/commands.xml