Proper mapView.region initialization

-If view loads and no previous region is decoded, map starts out
centered on DC and then pan/zooms to user location with a 2 mi. x 2 mi.
span once it is acquired
-Proper reverse geocoding of initial center coordinate, whether brand
new or from the coder
Standard location svcs used, check minuteTimer.fireDate, 3rd Just Walk alert, minor corner case bug fixes

-Use standard location services in background when bikingStateActive,
instead of significant location change
-start updating location when entering bikingStateActive, do not stop
updating if location svcs fail
-Archive minuteTimer.fireDate and check it when restarting app to see
if we need to requery the station data (presumably when launching into
background while biking)
-New Just Walk alert if the ideal destination station is full but the
closest one to the destination that isn't full is also the closest one
to the user
-copy regionIdentifierQueue when checking them, and only delete the
ones that were checked at the end of the method, to avoid race
conditions
-New method to set the name, coordinate and distance from user of an
Address without using an init method