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
Settings: activate qs and notifications toggle for navring (2/2)

Change-Id: I967b247d6f0586715d1fd825b6872e5d3d2eb075
Add an option to allow a (subtle) notification vibration during calls.

+ some sorting and string corrections

Change-Id: I8a5e1d15d17d56089158b24f9a4b246ae6e60285

Conflicts:
	res/values/strings.xml