Fixed #16903 -- Added `--no-location` option to the `makemessages` command to not write '#: filename:line' comment lines in language files. Thanks to alpar for the suggestion and patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17081 bcc190cf-cafb-0310-a4f2-bffc1f526a37