Fix minor bug found in a scenario with multiple activity instances

Fix broadcast receiver

Add snackbar on permanently denied permission listener. Add OnClickListener to dialog shown when any permission is denied.

Fix #262

Fix duplicated permission report

Minor fixes and improvements releated to recently used apps menu.

AndroidX support. Fix minor bug related to the host activity onDestroy lifecycle execution.

Tentative fix for a NPE

Release 4.1.0 * Add a new builder method for snackbars to configure how long the snackbar will display on screen

Release 3.0.1

Release 2.2.0

Add a new callback associated to the snackbar listener to be able to interact with the widget.