Update com.koushikdutta.backup/values-fr/strings.xml

sync with 06/02/13 update, 143 to 147 lines.
Update com.koushikdutta.backup/values-fr/strings.xml

- added space between "4)" and "Choose schedule" in <string name="no_scheduled">; as there is a space for 1) 2) and 3).
I suggest same modification in EN xml file.

-rephrased <string name="no_devices_summary"> ; "Press" / "Click"
Update com.koushikdutta.backup/values-fr/strings.xml

external sd. wifi connect.
more superuser checks
Merge remote-tracking branch 'jchleb/master'

Conflicts:
	com.koushikdutta.backup/values-fr/strings.xml