Debugging Android bugs, onDestroy remove intentReceivers, improperly resetting stationaryAlarm, incorrectly ignoring location in onLocationChanged

Implement stationaryAlarm to detect user stopped rather than passively calculating in onLocationChanged, since onLocationChanged won't fire until distanceFilter is surpassed

Remove creating stationary-region in onPaceChange, since setPace will set the acquisition-process in motion.

Add a speed-acquisition buffer, where we crank-up the GPS power after engaging aggressive-tracking.  we sample a small number of location-updates before auto-calculating distanceFilter