Fixed #17811 -- Added connection parameter in call to EmailMessage from...

Fixed #17811 -- Added connection parameter in call to EmailMessage from send_mass_mail. Thanks fed239 for the report and danielr for the patch.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@17827 bcc190cf-cafb-0310-a4f2-bffc1f526a37