Settings: FR translation

PS2: correction
PS3-4: rebase and add new translation

Change-Id: I3273a60fc290c116e3dbe186634cc2f97860d09c
Settings: Update DE-Translation

Also removed double included Strings from res/values/custom_strings.xml (L64-70 = L242-248)

Change-Id: I3f55150149d9fc797c084548b402063143b8cd6c
Merge "Settings: FR translation" into android-4.4
Merge "Settings: Update DE-Translation" into android-4.4
[1/2] Settings: SeekBarPreferences tweaks

-added @string support for units
-use SeekBarPreference for button brightness timeout

Change-Id: Ia392c739e035f1c8372b817ba5574ec7be13d5a8
[2/2] Settings: Add custom periods for data usage measurement

PS4
externalize strings and minor layout tweak

Change-Id: I815f6a773375a855514bc9a6517f292ffcc157a2
Settings: fix QuietHour start time

when user decide when quiethour will start/stop using time preference
alarm manager will setup the time, and call stop service in many times
before starting the service

this add some check to prevent call stop service before time to start

fix http://jira.omnirom.org/browse/OMNI-595

Change-Id: Ide4cb7f651ab153e1738d309992628b951e551c1
Merge branch 'android-4.4' of https://github.com/omnirom/android_packages_apps_Settings into android-4.4

Conflicts:
	res/values/custom_arrays.xml