Merge from product-engine

indra/newview/llcallfloater.cpp

indra/newview/llcallfloater.h

indra/newview/llchathistory.cpp

indra/newview/llimfloater.cpp

indra/newview/llimview.cpp

indra/newview/llimview.h

indra/newview/llnotificationgrouphandler.cpp

indra/newview/llnotificationhandler.h

indra/newview/llnotificationhandlerutil.cpp

indra/newview/llnotificationofferhandler.cpp

indra/newview/llnotificationscripthandler.cpp

indra/newview/llparticipantlist.cpp

indra/newview/llparticipantlist.h

...a/newview/skins/default/xui/en/floater_voice_controls.xml

indra/newview/skins/default/xui/en/notifications.xml

...a/newview/skins/default/xui/en/panel_im_control_panel.xml