try fix 'interactivePopGestureRecognizer' issue#17

Merged

WorldDownTown merged 3 commits intoWorldDownTown:masterfrom winddpan:master

Aug 12, 2018

+147-79

Commits on Jul 19, 2017

Fix interactivePopGestureRecognizer bug, coexistence with system interactivePopGestureRecognizer.
winddpan
committed
Replace zoomPopGesture location, could use without demo NaviationController.
winddpan
committed

Commits on Jul 20, 2017

expand functional
winddpan
committed