added remaining hints and fade in/fade out behavior

indra/newview/app_settings/settings.xml

indra/newview/llagent.cpp

indra/newview/llagent.h

indra/newview/llappviewer.cpp

indra/newview/llappviewer.h

indra/newview/llfirstuse.cpp

indra/newview/llfirstuse.h

indra/newview/llhints.cpp

indra/newview/llmoveview.cpp

indra/newview/llnearbychatbar.cpp

indra/newview/llnearbychathandler.cpp

indra/newview/llpanelplaces.cpp

indra/newview/llsidepanelinventory.cpp

indra/newview/llsidetray.cpp

indra/newview/llstatusbar.cpp

indra/newview/llviewerwindow.cpp

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

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