Mike Grabowski 26b165200f Add onNavigationStateChange (#453)
* Support

* Revert consoleg

* Add very bad doc

* Improve docs

* Surpress flow
2017-02-23 22:18:06 -08:00
..
2017-02-23 22:18:06 -08:00
2017-02-23 22:18:06 -08:00