Comment 0 for bug 804252

This is a splitout of bug #716535 into two features.

Debian has a new features for Release files that we should support as well:

InRelease
 That is just the release file with a inline signature (e.g. http://security.debian.org/debian-security/dists/lenny/updates/InRelease)
 One nice property is that Release and Release.gpg can no longer get out-of-sync