post admin actions to remote http endpoint

Thought of this in the context of [ChatOps](http://bit.ly/WnXzlK) - would be nice if NSQ-admin could send some kind of notification of an admin action, like pausing or deleting a channel. For generality this should probably be an HTTP endpoint, but we should design the request be as agnostic as possible about what service that endpoint belongs to.
![](https://dl.dropbox.com/u/1987041/Screen%20Shot%202013-01-03%20at%204.20.58%20PM.png)
I'll defer decisions on the exact format for now, but I'd guess we'd have all the parameters of the action in some json blob. Of course, this is all only (well, mostly only) useful if we can get at some form of the authenticated user performing the action ... we can do that, right?