ENH: Update ImageViewer checksum to compile on Macs
ENH: Update ImageViewer checksum to compile on Macs

Change-Id: I5b561370819710154e85455270da637fb447802f

LucasGandel/TubeTK,LucasGandel/TubeTK,matthieuheitz/TubeTK,KitwareMedical/ITKTubeTK,thewtex/TubeTK,aylward/ITKTubeTK,thewtex/TubeTK,cdeepakroy/TubeTK,KitwareMedical/ITKTubeTK,thewtex/TubeTK,cdeepakroy/TubeTK,KitwareMedical/TubeTK,aylward/ITKTubeTK,sumedhasingla/TubeTK,sumedhasingla/TubeTK,matthieuheitz/TubeTK,KitwareMedical/TubeTK,KitwareMedical/ITKTubeTK,KitwareMedical/ITKTubeTK,KitwareMedical/TubeTK,cdeepakroy/TubeTK,LucasGandel/TubeTK,KitwareMedical/TubeTK,aylward/ITKTubeTK,cdeepakroy/TubeTK,matthieuheitz/TubeTK,sumedhasingla/TubeTK,LucasGandel/TubeTK,thewtex/TubeTK,aylward/ITKTubeTK,matthieuheitz/TubeTK,sumedhasingla/TubeTK