Don't link to deleted websocket_server from core.async recipe
Make Rich quote a bit less weird-looking

The third arg to the quote term is the source being cited, which would be...

http://clojure.com/blog/2013/06/28/clojure-core-async-channels.html

Not sure if we want to figure out how to include that.
Merge remote-tracking branch 'origin/pull/327'
Edits to core.async