Merge branch 'DRTVWR-559' of https://github.com/secondlife/viewer

indra/llcharacter/llbvhloader.cpp

indra/llcommon/llsdserialize.cpp

indra/llcommon/llsdserialize.h

indra/llcommon/stdtypes.h

indra/llcommon/tests/llleap_test.cpp

indra/llcommon/tests/llsdserialize_test.cpp

indra/llcorehttp/tests/test_llcorehttp_peer.py

indra/llmessage/llcircuit.cpp

indra/llmessage/tests/test_llsdmessage_peer.py

indra/llrender/llgl.cpp

indra/llui/llbutton.cpp

indra/llui/llmenugl.cpp

indra/llxml/llcontrol.cpp

indra/newview/llagent.cpp

indra/newview/llmeshrepository.cpp

indra/newview/llmodelpreview.cpp

indra/newview/llpanelnearbymedia.cpp

indra/newview/llsceneview.cpp

indra/newview/llselectmgr.cpp

indra/newview/llsprite.cpp