Settings: make right pie mirror optional (2/2)

due 70% user feedback the wanted to have the right pie
mirrored on the horizontal axis  because of usability...the other 30% want a visual
logic... So a point to make it optional

default value is mirrored

cheers

Change-Id: Id1d9017b7180aa42171abf36721595ab9130d26e

Conflicts:
	res/values/strings.xml
Add more french translations for PIE

Kufikugel should really stop to add new strings for PIE :p

Change-Id: I09e67b11571fffb6e680e11a152f5bb72b40badf