add new EpdController.setMode() function, which accepts View as argument instead of Context
refactoring classes inherited from IDeviceController
add IDeviceFactory.has5WayButton()/hasPageButton(), and implement them in RK2906Controller
update russian translations
add front light API: FrontLightController
Merge branch 'release-1.1.2'

Conflicts:
	src/com/onyx/android/sdk/device/DeviceInfo.java
	src/com/onyx/android/sdk/device/EpdController.java
	src/com/onyx/android/sdk/device/IDeviceFactory.java