Reschedule new files check for when the correct network connection is available

[Will Lunniss]

At the moment, the new files check runs on a specific schedule. If the correct network connection is not available, it gives up and waits for the next check as specfied by the user.

This could be enhanced by asking to be notified by the OS when the correct connection becomes available. Once it is available, unregister for connection changes, run the check, and return to the normal user defined schedule.

http://developer.android.com/training/monitoring-device-state/connectivity-monitoring.html#MonitorChanges http://developer.android.com/training/monitoring-device-state/manifest-receivers.html