moar topic actions for make glorious hipchatting empire

@danielhfrank 
![keep-calm-and-thumbs-up-borat](https://cloud.githubusercontent.com/assets/1863240/4125005/b33442a8-32dd-11e4-8575-43b05f248f12.png)

actually, looks like you can do something simpler, we don't need the word "topic" or "channel" anymore since that's in the action_text_map values