Update copyright and license information in external.
remove dependency from GetImageDimension Macro
replace ITK_TYPENAME with typename
create branch for ITK 4 compatibility
fixed include: itkEuclideanDistanceMetric
c++ class wrapper around my_getopt.
removed long in Code/IO and Utilities/MetaIO
vendor branch 1.0 of my_getopt
add upstream version of my_getopt
add folder my_getopt (gnu style getopt supplement)