Citadel IRC channel

At the suggestion of one member of our developer community, we have begun inhabiting an IRC channel for general discussion about the Citadel software. Please drop by at on #citadel if you want to discuss development, deployment, support issues, etc.

We're making a couple of changes to the way we interact with the open source community. We'd like everyone to simply visit one or more Citadel sites to learn about Citadel, but some folks would like to use tools that they're more accustomed to: IRC, mailing list, web archives, etc. So we're going to make all of those tools available.