Pending 'it' translation updates for 3.4, forward-port to 4.0 and trunk


git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps40@21915 4ae1f11a-8b86-4847-b8af-ab372f36d1fd
Italian translation updates


git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/branches/maintenance/gramps40@21916 4ae1f11a-8b86-4847-b8af-ab372f36d1fd