Bump version number to 0.4.5.
Bump version number to 0.4.5.

Added Java and Python tests, improved the CMake files.

dgobbi/vtk-dicom,hendradarwin/vtk-dicom,dgobbi/vtk-dicom,hendradarwin/vtk-dicom,dgobbi/vtk-dicom,hendradarwin/vtk-dicom