Fixed #5491 -- Changed PO file generation to sort the filenames we scan prior

to passing them to gettext. This should help reduce the changes in line
orderings caused by different translators using different operating systems and
locales. Based on a patch from Ramiro Morales.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6445 bcc190cf-cafb-0310-a4f2-bffc1f526a37