[shutdown] If charger state is unknown then do shutdown, not actdead JB#8000

Signed-off-by: Pekka Lundstrom <pekka.lundstrom@jollamobile.com>
Pump up version to 0.62.15
Merge pull request #14 from plundstr/master

 	[shutdown] If charger state is unknown then do shutdown, not actdead