Investigate Usage Outside View Hierarchy

[JakeWharton]

It sucks having to put this in your hierarchy. What if we walked up the tree and attached ourself at the end of the ViewRootImpl automatically? It could even be idempotent so you always just call:

Scalpel.obtain(this /* <-- activity */).someControl()

[JakeWharton]

This would have to be optional since we (as in me) don't want to clobber things like debug drawers.