COMP: Adding missing include for compilation with ITKv4.4
COMP: Windows: If ResampleDTIlogEuclideanLib compiled statically, test executables tried to link with dynamic lib (dll) whereas the lib is static: remove dllimport
COMP: Fix MODULE_IMPORT for windows compilation and linking
STYLE: Convert CMake-language commands to lower case

Ancient CMake versions required upper-case commands.  Later
command names became case-insensitive.  Now the preferred style
is lower-case.
This also changes all the key words to lower case. The
primary reason for changing key words is that all
documentation for CMakeLists.txt now shows the key words as
lower case. Even the printed “Mastering CMake v5” uses lower
case.
ENH: Rename txx to hxx for ITKv4 conventions.
STYLE: Use .hxx instead of .txx to match ITKv4 style.
STYLE: Format in ITKv4 style.
Merge pull request #1 from hjmjohnson/UpdateStyleToITKv4

Update style to it kv4
Merge branch 'concatenateOnly'

Conflicts:
	Source/ResampleDTI.cxx
	Source/itkDiffusionTensor3DRead.h
	Source/itkDiffusionTensor3DRead.txx
ENH: If the option --concatenateOnly is selected, the input image can be a scalar image if a reference image is given. In that case, if no reference image is given, an error will occur.