docs for beaker-project.org infrastructure
update submodules
move 0.13.2 Fedora packages out of testing
add xml:base and entry links to Atom feed of releases

Attempting to make Feedly happy.
git_tags.py should use HEAD instead of refs/heads/master

We apparently cannot rely on any particular branch being checked out or
up to date in submodules, that's not really how they work it seems.
update develop submodule
Changes to submission delegate design proposal

Change-Id: Iff2d944d357a320a3bc792013520a4405c3aec8c
Merge "Changes to submission delegate design proposal"