fixing save for compressed data

[vsoch]

This will close #65 by doing a check for compressed data, and if compressed, we use dicom.decompress() to adjust the Transfer Syntax. Discussion and help from @scaramallion is shown here https://github.com/pydicom/pydicom/issues/738#issuecomment-421581350.

I have also updated headers (date for 2018) and fixed an issue with showing the version to close #66. @

@fimafurman we are ready for testing! Note that this compressed data doesn't load in my goto viewer (normally brain images I use mricron) but dropping into Papaya worked like a charm!

• Papaya[http://rii.uthscsa.edu/mango/papaya/]

[fimafurman]

Tested, verified - thank you!

[vsoch]

https://pypi.org/project/deid/0.1.17/