back_button_interceptor 4.0.4

Back Button Interceptor. May be used to do stuff when the Android back-button is tapped, as an alternative to `WillPopScope`.

[1.0.0] - 2019/01/02

• Tested thoroughly. Single interceptor.

[2.0.0] - 2019/01/02

• Multiple interceptors.

[2.0.2] - 2019/02/22

• Fixed dart version.

[3.0.0] - 2019/03/03

Prevents silent errors swallowing.

[4.0.1] - 2019/03/09

Functions added last are fired first. Parameters ifNotYetIntercepted and zIndex.

[4.0.2] - 2019/04/02

Helper methods to get the current route name, and the current route stack.

[4.0.4] - 2019/04/17

Testing features.