In dicompull, don't use any punctuation from tags.
In dicompull, don't use any punctuation from tags.

When DICOM attribute values are used to name the output directories,
strip all punctuation.  Previously, "+" and "-" and "." were left in.

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