Change stderr to stdout to remove printout on console
When removing a group, trap the GROUP NOT FOUND error and ignore it.
Add entry for encapsulated PDF files.
Add entry for DICOM_SOPCLASSENCAPSULATEDPDF.
fix size of encapsulated document fix the file name
Add -e switch to the usage error.
Add code to add an Encapsulated Document.
Add new SOP classes for Spectroscopy and Raw data.
Add test cases t1 through t4.
Add -i switch so we can dump a specific item from a sequence.