Fixed cmake prefix path to ITK install
Fixed cmake prefix path to ITK install

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