* Fix popGesture freeze the app

* Move popGestureDelegate initialization to init

* Handle simultaneous recognizers

Fixes a crash when tapping on the screen with other gesture recognizers active.

* Remove unneeded respondsToSelector override

* Fix iOS pop gesture when nav bar is hidden

* Add missing property

* Factor out InteractivePopGestureDelegate into its own file

* Add missing import

* Make sure fix supports hidden and visible nav bars

* Minor code style fix