ENH: Application version of itktubeShrinkImageUsingMax. Added Overlap option.
Merge pull request #149 from aylward/ShrinkImageApp

ENH: Application version of itktubeShrinkImageUsingMax
COMP: Removed unused var warning from zeroOffset var
Merge pull request #150 from aylward/ShrinkAndUSTKWarnings

COMP: Removed unused var warning from zeroOffset var