Use user defined colors for all digital clock views

This will apply the colors not only to the digital clock widget
but also to the clock views in the application itself.

Change-Id: Icce7d676ae2903c2580a46b97062fe1881ac41a1
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>

Conflicts:
	res/values/arrays.xml
	res/values/strings.xml