[inspector] fill out radio pane

This gets us a pretty Radio panel with all the channels and their respective events, commands, and requests.
![](http://f.cl.ly/items/3N3i1n3g2s0Q3T0u0V2z/Image%202014-11-06%20at%2012.07.42%20PM.png)

I almost feel bad having y'all read this because like the other inspector PRs it's long and not all that interesting. You can imagine possible cleanup/refactors that extract common layout/list/row/info behaviors and base classes while you read it. Maybe we'll do this in the end, maybe we wont... Honestly, I kinda like looking at these semi-big views bc they're so easy on the eyes compared to all the agent code that's dense...
just some opinionated cleanups here to make consuming the data cleaner in the inspector