QAR-1142 merging 1.22 RC0-RC4 changes.

doc/contributions.txt

indra/develop.py

indra/lib/python/indra/util/llmanifest.py

indra/linux_crash_logger/CMakeLists.txt

indra/llcharacter/lleditingmotion.cpp

indra/llcommon/llerror.cpp

indra/llcommon/llerrorcontrol.h

indra/llcommon/llversionviewer.h

indra/llcrashlogger/llcrashlogger.cpp

indra/llimage/llimagejpeg.cpp

indra/llmath/llvolume.cpp

indra/llrender/llgl.cpp

indra/llrender/llgl.h

indra/llrender/llimagegl.cpp

indra/llrender/llrender.cpp

indra/llrender/llrender.h

indra/llui/llfloater.cpp

indra/llui/llfloater.h

indra/llui/lltexteditor.cpp

indra/llui/llview.cpp