Added RelabelComponentFilter to watershed output to change longs to signed shorts.  This is a logical thing to do (will be even better when our ITK build gets signed int support), and prevents a very silly crash on x86_64 due to lacking 128 bit unsigned long support.
Added RelabelComponentFilter to watershed output to change longs to
signed shorts.  This is a logical thing to do (will be even better
when our ITK build gets signed int support), and prevents a very silly
crash on x86_64 due to lacking 128 bit unsigned long support.

zhangfangyan/devide,zhangfangyan/devide,nagyistoce/devide,ivoflipse/devide,chrisidefix/devide,nagyistoce/devide,fvpolpeta/devide,ivoflipse/devide,chrisidefix/devide,fvpolpeta/devide