BUG: set parent folder to . if empty
STYLE: Remove Slicer splash screen when running a Slicer command
ENH: Write corrected DWI using original DWI and not downsampled one
ENH: If input DWI is a nrrd, convert to nhdr
ENH: Use python module to parse args
ENH: Use python recursive directory creation function os.makedirs() instead of simple os.mkdir()
ENH: Write only nrrd corrected file in output folder, and no nhdr
Merge pull request #3 from adrienkaiser/master

ENH: Accept .nrrd input and Add cmd line args