'repo-name' added to layout.conf
'ChangeLog' files removed

The 'ChangeLog' files were removed, because we will re-generate them
on client-side using 'egencache ... --update-changelogs'.
.gitignore added

We are now ignoring

  - metadata/md5-cache
    This cache will be created on client-side, because it depends on
    eclasses from Gentoo's portage tree which can be changed
    independently.

    See http://forums.gentoo.org/viewtopic.php?p=7417824#7417824

  - */*/ChangeLog
    ChangeLog files can be created by egencache. Because egencache should
    be called on client-side already, there is no overhead.
    Also, egencache will use git's commit logs, which are more accurate.