Integrate 'regular fonts' version.

The Filmplakat2-Regular version is now integrated and can be enabled
via the configuration window.
Use charge_percent without adjustment.

BETA5+ fixes charge_percent so it will report 100% if that's the charge.
Only report low-battery status *once*

If the remaining charge goes below 10% Pebble will now vibrate once and
then keep silent until the charge raises above 10% again.
Enhance settings sync between Pebble-iOS and the WatchFace