DRTVWR-453: Merge up to latest viewer-release.

.hgtags

autobuild.xml

doc/contributions.txt

indra/llappearance/lltexlayer.cpp

indra/llappearance/llwearable.cpp

indra/llcommon/llfile.cpp

indra/llcommon/llfile.h

indra/llcommon/llmemory.cpp

indra/llcommon/llmemory.h

indra/llcommon/llsdserialize.cpp

indra/llcommon/llsdserialize.h

indra/llcommon/llsdserialize_xml.cpp

indra/llcommon/llthread.cpp

indra/llcommon/tests/llsdserialize_test.cpp

indra/llcorehttp/CMakeLists.txt

indra/llimage/llimage.cpp

indra/llimage/llimage.h

indra/llimage/llimagedxt.cpp

indra/llimage/llimagej2c.cpp

indra/llkdu/tests/llimagej2ckdu_test.cpp