Odometer

Implementing new Odometer feature for tracking distance-travelled.  Simple js API:  getOdometer, resetOdometer.  It's up to developer to reset the odometer as desired, it will be preset to zero at boot

Bump edge version as 0.4.0

Expand persistence layer

Merge branch 'expand_persistence_layer' of github.com:christocracy/cordova-background-geolocation into expand_persistence_layer

Always persist locations, no matter if HTTP feature is enabled.  Implement getLocations and sync methods for fetching/syncing locations.  Implement batchSync, autoSync parameters to control nature of HTTP

Update README.md

When settings are changed via setConfig, apply them immediately

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Cast timestamp to Javascript new Date() before sending to callback.  …

Cast timestamp to Javascript new Date() before sending to callback.  Fix bug in persistence layer on Android wiht new timestamp ISO-8601 format.  Add device_id to HTTP POST for both Android & iOS

Update README.md

ATTENTION EVERYONE!

Add new Cordova CSP meta tag.  Modify schema of returned geolocation, placing location params into 'coords' key in order to make room for extra meta-data, such as detected-activity from Android