merge changes for 3.8.3-release

.hgtags

indra/llimage/llimage.cpp

indra/llmessage/llassetstorage.cpp

indra/llprimitive/llmodel.cpp

indra/llrender/llglslshader.cpp

indra/llrender/llrender.cpp

indra/llrender/llrender.h

indra/llui/llcombobox.cpp

indra/llui/lltabcontainer.cpp

indra/llwindow/llwindowwin32.cpp

indra/newview/VIEWER_VERSION.txt

indra/newview/app_settings/settings.xml

indra/newview/app_settings/toolbars.xml

indra/newview/installers/windows/installer_template.nsi

indra/newview/llagentcamera.cpp

indra/newview/llagentcamera.h

indra/newview/llagentwearables.cpp

indra/newview/llaisapi.cpp

indra/newview/llaisapi.h

indra/newview/llappearancemgr.cpp