merge changes for vwr-24420

doc/contributions.txt

etc/message.xml

indra/llaudio/llaudioengine.cpp

indra/llcommon/llfile.cpp

indra/llcommon/llfile.h

indra/llmath/llbbox.cpp

indra/llmath/llbbox.h

indra/llmessage/llregionflags.h

indra/llui/llfloater.cpp

indra/llui/llmenugl.cpp

indra/llui/llurlentry.cpp

indra/llui/llurlentry.h

indra/llui/tests/llurlentry_stub.cpp

indra/newview/CMakeLists.txt

indra/newview/llagent.cpp

indra/newview/llappearancemgr.cpp

indra/newview/llappviewer.cpp

indra/newview/llinventoryfunctions.cpp

indra/newview/llinventorymodelbackgroundfetch.cpp

indra/newview/llinventoryobserver.cpp