Inspect element

With this PR we add the ability to click on an element and link to the elemnt in the elements tab.

![](http://f.cl.ly/items/2M3I3m1i092T2D1C0u1F/Image%202014-10-16%20at%202.58.06%20PM.png)

To get that we needed to add a couple things:

+ a serialized and unserialized verison of regionTree
+ an appObserver.getView method for getting the right guy
+ a UI app method for linking an element
+ some nice view code

I also added underscore-contrib, because why not... this could be a burden... but it could be cool too.