Add a way to disable libravatar.

On connections where we can't hit libravatar for whatever reason, it
is nice to be able to run the tests without having them stall trying to
connect to libravatar.org. This gives us a way to disable it.

Signed-off-by: Ricky Elrod <ricky@elrod.me>
Fix another css weirdo.
Merge pull request #51 from bochecha/pyramid

Add missing requirement
Make the search box actually take you somewhere.
Merge pull request #52 from fedora-infra/libravatar-optional

Add a way to disable libravatar.
Add a command-line tool for creating new releases
Avatars in search results.
Add JSONP renderers for all of our cornice services.
views: Reuse the util.markup function
util: Escape raw HTML

We don't want random users to write whatever HTML in comments.
tests: Ensure markdown escapes raw HTML
Merge pull request #53 from bochecha/nohtml

Make sure markdown doesn't allow users to insert arbitrary html
Default to an empty bug list in the cli to make the colander schema happy