Settings: add reset option to clock color and cleanup (1/2)
to be consistent. So we have now on all places with colorpicker
same logic + option per menu to reset color to default.

as well some cleanup and codestyle corrections

cheers

Change-Id: If4156c57420a3a72b3eb0f01cf8441ccc7bf1eeb

Conflicts:

	src/com/android/settings/cyanogenmod/StatusBarClockStyle.java
	src/com/android/settings/cyanogenmod/StatusBarStyle.java