ENH: Explicitly disable-lzma for TIFF building.
COMP: Silence a few more warnings.
ENH: Update ExternalData.cmake to match cmake 2.8.11
COMP: Remove external packages.
COMP: Slicer requires that DWIConvert is executable

DWIConvert does not work as a shared library because
the images can not be passed properly to Slicer
interface.  This turns off building DWIConvert
as a shared library.
ENH: Update ANTS for landmark files

Update DCMTK to match Slicer, Update ITK with SoftwareGuide materials.
ENH: Add meta-data for EMSP.fcsv to image meta data.
ENH: More regular expressions for removing unnecessary warning messages.