Some advice from my experience; 1. release the source with tests; 2. keep in mind people may be expecting source code that they can easy take away lessons
Multiple moderators seems a good feature.
A chat box may not come to this, I believe for most of the time users will be using another communication tool with audio/video like Google Hangouts, Skype and etc..
Thanks for the feedback.
I did look into JIRA integration before release it, since we also use it, but the on-demand version don't support CORS or JSONP, this is something that I would like to have but will require some extra work, so maybe in the future.