Email headers to make it easy to filter mails

Hi,

I think it would be smart if you added a {{

{X-Bitbucket-Repository}

}} header to emails sent out. It should contain the {$USER/$REPO} path to the repository that triggered the mail.

That way it would be easy to filter mails based on the source repository. As it is now, we'll have to filter based on a {{

{Subject}

}} header that looks something like this:
{{{
Subject: New issue $N in $REPO: ...
}}}
That format looks like it's subject to change and it could be ambiguous if I follow several projects with a repository named {$REPO}. Since people like to name their repos "stable", "devel", and similar, this is not so far fetched.