Removal of commented out code

Signed-off-by: Blake Skinner <bskinner@mit.edu>
IPHONEAPP-643/IPHONEAPP-645

Try to funnel any region changes through the mapRegion property instead of messing with the ArcGIS map view in several places. This also really simplifies the thread handling

Signed-off-by: Blake Skinner <bskinner@mit.edu>
IPHONEAPP-643/IPHONEAPP-645

Add a property which set the minimum allowable region size when using regionFor* methods. The value is interpreted as a square region measured in meters.

Signed-off-by: Blake Skinner <bskinner@mit.edu>