HTML sitemap generation
Cleanup Data.Object.Translate
Cleanup Parameter stuff. Own module? Interface with formlets?
Authentication via e-mail address built in. (eaut.org)
OpenID 2 stuff (for direct Google login).
Is there a mimetype package on hackage for Yesod.Helpers.Static?
Native support for HStringTemplate groups.
AtomFeed uses RelLoc and AbsLoc like Sitemap
Fix type of sitemap