fixed focus issue on inventory

indra/llrender/llrender2dutils.cpp

indra/llrender/llrender2dutils.h

indra/llrender/lluiimage.cpp

indra/llrender/lluiimage.h

indra/llui/lliconctrl.cpp

indra/llui/lliconctrl.h

indra/llui/lllayoutstack.cpp

indra/llui/llresizebar.cpp

indra/llui/llresizebar.h

indra/newview/app_settings/settings.xml

indra/newview/llavatariconctrl.cpp

indra/newview/llavatariconctrl.h

indra/newview/llsidepanelinventory.cpp

indra/newview/llviewertexturelist.cpp

indra/newview/llviewertexturelist.h

indra/newview/skins/default/textures/textures.xml

...skins/default/textures/widgets/horizontal_drag_handle.png

...w/skins/default/textures/widgets/vertical_drag_handle.png

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

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