COMP: compare Z spacing reported in DICOM to measured difference between slices
COMP: modularize
BUG: fix bugs in test and DWI file comparison program
DOC: added comments
ENH: Check for missing gradients in Siemens files
BUG: fixed problem with directions in NRRD file.

Trim off trailing ISOTROPIC volumes
BUG: got origin wrong for Siemens Mosaic images
ENH: add the python script for testing new version

Before moving to a new version of DWIConvert, use this script to make
sure that it converts DICOM datasets at least as well as the current
production version.
BUG: Check script
BUG: Philips Multiframe Deinterleave fix
BUG: Accomodate Signa HDx scanners
COMP: handle more GE Signa models correctly
COMP: Add sanity checking & test script
Merge pull request #38 from Chaircrusher/DWIConvertModularize

Dwi convert modularize