Update dictionary to the DICOM 2013 PS3.6 values.
Add missing space.
Add vtkDICOMFile class to centralize the IO.
Add feof and ferror check.
Make ferror and feof checks a bit more efficient.
Create the file object on the stack.
Check for valid handle before calling fclose().
Add RLE decompression to the basic reader.
Make the generated meta data a member of the generator.

This seems like a logical thing to do, since the generator
already has other member variables that depend on the meta data.
Add some support for functional groups and enhanced MR writing.