sync up with viewer-development

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

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

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

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

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

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

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

.../newview/skins/default/xui/en/panel_preferences_sound.xml

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

...a/newview/skins/default/xui/en/widgets/chiclet_im_p2p.xml