The longer the time countdown on the progress bar, the less frequently
the screen is refreshed, which results in less power consumption when
running the Meditation, Relaxation, Power Nap and Focus Timer
applications.
* Added brightness fade in - feature
which allows for gradual frontlight
brightness rise during alarm and
power nap ringing instead of turning
on with full brightness immediately.
* Fixed possibility to close
ringing power nap by long press
of back button.
The commit provides an implementation to MVP of
BackgroundsSounds ProgressWindow. The implementation
is restricted to basic UI and timer functionality.
