Updated French translation [JB]

ModStatusBar: Data Traffic Monitor revamped
Icon Picker: added icons for Calculator, Skype and Viber
QS Tiles: reorganized tile specific settings
QS Tiles: Timeout modes for the stay awake tile
Traffic meter: option to show only while download active (4.3 only)
QS Tiles: added tile for controlling lockscreen state
QS Tiles: Alarm tile settings
Merge pull request #636 from ch-vox/patch-55

Updated French translation [JB]