Added some French translations.
Reword power sounds to power connectivity alert.
Update of some French Translations
Back icon in action bar of APN Settings

When entering the APN menu, the actionbar is missing a back
icon allowing the user to go back to the previous pane.

Added parentActivityName in ApnSettings, to enable action
bar back icon.
Merge pull request #6 from AirOne70/jellybean

Better.