Changed logic for displaying medium construction and impact alerts.
Fix for most common NullPointerExceptions on Traffic and VesselWatch map activities.

Appears to be caused by trying to obtain LatLngBounds before map is ready.
Fix for NullPointerExceptions when viewing a camera image.

I believe this was happening when there was an error encountered while trying to
retrieve the image. If an exception was thrown then the BitmapDrawable being returned
from the CameraImageLoader class was null.
Bump version code and name for next release.