Allow to do a mapping from commit log emails to real users
The emails found in VCS commit logs are often crap because users don't update their hgrc correctly. So we can find emails such as user@msi or myself@laptop. It would be nice to be able to scan repositories for all these crap addresses, and store the mapping between these adresses and real users in the rhodecode. This is particularly important for code review because otherwise comments on changesets are never sent to the good place. I've created a clone to implement this behaviour. I've added a table to store the mapping, and a view to scan the repos and edit the mapping, that can be reached from the admin/users page (see the screenshot). I've also added a first migration step to 006.