We're changing to gitter.im for community messaging

[Michael Musgrove]

We have changed the way our community use messaging to communicateg. Instead of using the freenode IRC network you can now find us on gitter.im in the jbosstm/community room: https://gitter.im/jbosstm/community. Anyone can join.

We also updated the community page (https://narayana.io/community/index.html) to reflect this change and of course you can still interact with the community via the forums and email.

[Tom Jenkinson]

We have subsequently further moved to Zulip. I will mark this as complete.