Merge pull request #10 from McGiverGim/master

Added new Strings to spanish translation
german translation
FAQ link added to menu
NullPointer fixed
start SensorListener before reading steps variable
added IS_RUNNING flag & re-added "restart every hour" workaround
switched from BroadcastReceiver to AppWidgetProvider
more strings extracted
Swedish translation added for new strings
Merge pull request #11 from ogr3/master

Swedish translation added for new strings
fix crash on German devices
fix: bars not shown if one day had 0 steps
Merge pull request #2 from j4velin/master

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