persist to database asynchronously as data is written to the cache
Dumping to file now writes all existing references
Since should not use batteryrealtime as it does not run while plugged
Other stats total time uses the real elapsed time
Fixed - task 369: [bug] small widget reads wrong prefs 
https://github.com/asksven/BetterBatteryStats/issues/issue/369
Added code to migrate -> delete bad references
release commit
Assert objects not being null
Changed migration strategy