Reorganize and expand menubar so that it contains all major commands. Reposition menu items to correspond to Gnome, Kde, Mac and Windows user interface guidelines. Fix window activation so that commands bring forword a window if it is already open. Add accessors for actions, menus and toolbars so that items can be added to menus and toolbars.

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@9157 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: telwertowski