1.0.X: italian translation: updates, corrections, added ugly but more correct...

1.0.X: italian translation: updates, corrections, added ugly but more correct suffixes to some gender-varying words

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@11336 bcc190cf-cafb-0310-a4f2-bffc1f526a37