Update PermissionsDispatcher to 2.2.0.
Update PermissionsDispatcher to 2.2.0.

https://github.com/hotchemi/PermissionsDispatcher/releases/tag/2.2.0
konifar/droidkaigi2016,konifar/conference-sched,shaunkawano/droidkaigi2016,konifar/conference-sched,shaunkawano/droidkaigi2016,konifar/droidkaigi2016