merge

indra/llui/llcheckboxctrl.cpp

indra/llui/llcombobox.cpp

indra/llui/llcombobox.h

indra/llui/lldockcontrol.cpp

indra/llui/llfloater.cpp

indra/llui/llfloater.h

indra/llui/llhandle.h

indra/llui/lliconctrl.cpp

indra/llui/lliconctrl.h

indra/llui/lllayoutstack.cpp

indra/llui/lllayoutstack.h

indra/llui/lllineeditor.cpp

indra/llui/lllineeditor.h

indra/llui/llmenubutton.cpp

indra/llui/llmenubutton.h

indra/llui/llmenugl.cpp

indra/llui/llmenugl.h

indra/llui/llnotifications.cpp

indra/llui/llnotifications.h

indra/llui/llnotificationtemplate.h