BUG: Double "install" commands fixed
BUG: Double "install" commands fixed

KitwareMedical/TubeTK,KitwareMedical/TubeTK,aylward/ITKTubeTK,thewtex/TubeTK,aylward/ITKTubeTK,KitwareMedical/ITKTubeTK,KitwareMedical/ITKTubeTK,KitwareMedical/TubeTK,thewtex/TubeTK,KitwareMedical/ITKTubeTK,thewtex/TubeTK,aylward/ITKTubeTK,KitwareMedical/ITKTubeTK,KitwareMedical/TubeTK,thewtex/TubeTK,aylward/ITKTubeTK