Fixed #2101 -- Renamed `maxlength` argument to `max_length` for oldforms `FormField`s and db model `Field`s.  This is fully backwards compatible at the moment since the legacy `maxlength` argument is still supported.  Using `maxlength` will, however, issue a `PendingDeprecationWarning` when used.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@5803 bcc190cf-cafb-0310-a4f2-bffc1f526a37