Merge with viewer-experimental

.hgignore

etc/message.xml

indra/cmake/00-Common.cmake

indra/cmake/Copy3rdPartyLibs.cmake

indra/cmake/LLPrimitive.cmake

indra/cmake/Variables.cmake

indra/llcommon/llassettype.cpp

indra/llcommon/llassettype.h

indra/llcommon/lldarray.h

indra/llcommon/lldefs.h

indra/llcommon/llfoldertype.cpp

indra/llcommon/llfoldertype.h

indra/llcommon/llmemory.cpp

indra/llcommon/llmemory.h

indra/llcommon/llsdserialize.cpp

indra/llcommon/llsdserialize.h

indra/llcommon/llstrider.h

indra/llcommon/llthread.cpp

indra/llcommon/llthread.h

indra/llcommon/stdenums.h