The beginning of the end of travis-core in travis-tasks

This starts up, and IRC notifications work.

## TODO

Make sure that all notifications actually work:
- [ ] Campfire
- [ ] E-mail
- [ ] Flowdock
- [ ] GitHub commit status
- [ ] Hipchat
- [x] IRC
- [ ] Pusher
- [ ] Webhook

- [ ] Figure out what to do about metrics / instrumentation
- [ ] Make sure that everything is hooked up to travis-hub properly