[Catalyst] Planet Catalyst added to FeedBurner

Planet Catalyst's feed is now available on FeedBurner.

The existing planet.catalystframework.org feeds continue to work, but please
consider changing your URI to the new FeedBurner feed:

http://feeds.feedburner.com/PlanetCatalyst

The primary reason for this is to show interest in Catalyst via the
graphical FeedBurner subscriber counter so the more people using FeedBurner
the better.

Also let me know if feeds readers have problems with redirects and if
redirecting the current feeds to FeedBurner would be a good idea.

Regards,
John