merge fixes from 3.4.3-beta3

.hgtags

doc/contributions.txt

indra/llui/llscrolllistctrl.cpp

indra/newview/featuretable.txt

indra/newview/featuretable_linux.txt

indra/newview/featuretable_mac.txt

indra/newview/featuretable_xp.txt

indra/newview/llautoreplace.cpp

indra/newview/llautoreplace.h

indra/newview/lldrawpoolavatar.cpp

indra/newview/llfeaturemanager.cpp

indra/newview/llfloaterautoreplacesettings.cpp

indra/newview/llmeshrepository.cpp

indra/newview/llmeshrepository.h

indra/newview/llvovolume.cpp