Merge. Refresh from viewer-release after 3.7.4 release.

.hgtags

BuildParams

autobuild.xml

build.sh

doc/contributions.txt

indra/CMakeLists.txt

indra/cmake/BuildVersion.cmake

indra/cmake/Copy3rdPartyLibs.cmake

indra/cmake/FMODEX.cmake

indra/edit-me-to-trigger-new-build.txt

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

indra/lib/python/indra/util/llmanifest.py

indra/llappearance/llavatarappearance.cpp

indra/llappearance/lltexglobalcolor.cpp

indra/llappearance/lltexlayer.cpp

indra/llaudio/llaudiodecodemgr.cpp

indra/llaudio/llaudioengine.cpp

indra/llaudio/llaudioengine_fmodex.cpp

indra/llaudio/llaudioengine_fmodex.h

indra/llaudio/lllistener_fmodex.cpp