Avoid HTML entities in advocacy text for mail notifications.

Hi Enrico,

Would the attached patch make sense?

We are seeing things like:
 - I've known Joanne
 - I've been in touch
 - |I advocate Alf Gaida <agaida@siduction.org>
 - So I'd really appreciate to see Lucas Kanashiro as DD as he's doing really a lot for the Debian Perl Team.
 etc.

Since we're sending a mail, I suppose turning off auto-escaping would
make sense, but I'm not certainly certain it's "safe".

KiBi.

templates/notification_mails/advocacy.txt

@@ -12,6 +12,6 @@ The current status of {{ log.process.person.fullname }} is {{ log.process.person
 
 Advocacy text:
 
-{{ log.logtext }}
+{{ log.logtext|safe }}
 
 {{ log.changed_by.fullname }} (via nm.debian.org)