Skeleton for card store and client.
Implement and test in-memory card store.
Add in-memory publishing support to server.
Start adding proper publishing support to the demo.
Hook up new Javascript functions.
Use initialize better in request handlers and enhance input checking a little.
Turn off XSRF cookies -- this isn't a post to a website form.
Implement card posting and receiving.
Add lists of channels to publish / subscribe to.
Add list of channels to demo.html template context.
Pass in jQuery selectors rather than form id strings.
Allow publishing to different channels.
Hook up receive channel form to stubbed out channel updater.
Add unsubscribe method to store interface and memory store.
Add unsubcribed handler to server.
Remove javascript Echidna API access.
Add removal of message on unsubscribe.
Document the data retrieval method for the two panels.