ENH: Spell checking and examples for pyfsa.
ENH: Spell checking and examples for pyfsa.

Change-Id: I219a67e3b66775e0e66a40f8f89fe7143af5cb07

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