* Introduce a main switch to actually enable/disable doze globally
* Move preferences handling out of SamsungDozeService class and
create Utils class to hold all helper methods.
Change-Id: Idb40650296d50352b4a985d2068f14cda6cb4aaf
* show in settings
* drop support lib
* drop unnecessary viewpager/tab bar
* drop unused strings/resources
Change-Id: I90c62d7b106ad744ae698044f6f17a759fcbf8a3