Christian Ebert <blacktrash@gmx.net> [Wed, 05 Aug 2009 17:19:08 +0200] rev 9313
notify: do not mime encode multipart templates
Mulitpart templates should take care of this themselves.
See http://www.selenic.com/pipermail/mercurial/2009-July/027017.html
Also catch potential parsing errors gracefully.