Merged in lindenlab/viewer-cleanup

indra/integration_tests/llimage_libtest/llimage_libtest.cpp

indra/llappearance/llavatarappearancedefines.h

indra/llappearance/lltexlayer.h

indra/llappearance/llwearabletype.cpp

indra/llcommon/CMakeLists.txt

indra/llcommon/llapp.cpp

indra/llcommon/llassettype.cpp

indra/llcommon/llcleanup.cpp

indra/llcommon/llcleanup.h

indra/llcommon/llcommon.cpp

indra/llcommon/llcoro_get_id.cpp

indra/llcommon/llcoro_get_id.h

indra/llcommon/llcoros.cpp

indra/llcommon/llcoros.h

indra/llcommon/llerror.cpp

indra/llcommon/llerror.h

indra/llcommon/llerrorcontrol.h

indra/llcommon/llevents.h

indra/llcommon/llheteromap.cpp

indra/llcommon/llheteromap.h