ENH: Can now request Mean and StdDev histograms (for debugging purposes, mainly).  STYLE: Fixed indentation and line lengths.
ENH: Can now request Mean and StdDev histograms (for debugging purposes, mainly).  STYLE: Fixed indentation and line lengths.

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