Merge downstream code from CHUIStorm release

.hgtags

BuildParams

doc/contributions.txt

indra/cmake/BuildVersion.cmake

indra/edit-me-to-trigger-new-build.txt

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

indra/llui/llbutton.cpp

indra/llui/llbutton.h

indra/llui/llchatentry.cpp

indra/llui/llchatentry.h

indra/llui/llfloater.cpp

indra/llui/llfloater.h

indra/llui/llfloaterreg.cpp

indra/llui/llfolderview.cpp

indra/llui/llfolderviewitem.cpp

indra/llui/llfolderviewitem.h

indra/llui/llfolderviewmodel.cpp

indra/llui/llfolderviewmodel.h

indra/llui/lllayoutstack.cpp

indra/llui/lllayoutstack.h