merge back late changes and tags from release branch

.hgtags

BuildParams

doc/contributions.txt

indra/llaudio/llaudioengine_fmod.cpp

indra/llaudio/llvorbisencode.cpp

indra/llcharacter/llbvhloader.cpp

indra/llcharacter/llkeyframemotionparam.cpp

indra/llcharacter/llstatemachine.cpp

indra/llcommon/CMakeLists.txt

indra/llcommon/llapp.cpp

indra/llcommon/llapr.cpp

indra/llcommon/llapr.h

indra/llcommon/llaprpool.cpp

indra/llcommon/llaprpool.h

indra/llcommon/llcommon.cpp

indra/llcommon/llcommon.h

indra/llcommon/llerror.cpp

indra/llcommon/llerror.h

indra/llcommon/llfixedbuffer.cpp

indra/llcommon/llmemory.cpp