Merge remote-tracking branch 'remotes/origin/DRTVWR-546' into DRTVWR-559

indra/cmake/Copy3rdPartyLibs.cmake

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

indra/llmath/lloctree.h

indra/llmath/llvolume.cpp

indra/llrender/llgl.cpp

indra/llwindow/llwindowwin32.cpp

indra/newview/app_settings/settings.xml

...newview/app_settings/shaders/class1/objects/previewV.glsl

indra/newview/llappviewer.cpp

indra/newview/llcallingcard.cpp

indra/newview/lldrawpoolalpha.cpp

indra/newview/llface.cpp

indra/newview/llpanelgroupcreate.cpp

indra/newview/llpanelpeople.cpp

indra/newview/llspatialpartition.cpp

indra/newview/llstartup.cpp

indra/newview/llvieweroctree.cpp

indra/newview/llvieweroctree.h

indra/newview/llviewershadermgr.cpp

indra/newview/llviewerwindow.cpp