Source code update

[yvonperr]

Please commit the source applicable to the latest DatCon version (now 3.6.3).

Any chance we could get the code to that or any more recent updates?

[yvonperr]

I just checked in a fork of DatCon (from February 2019) for my command line execution of multiple .dat files and/or folders of such at:
https://github.com/yvonperr/DatCon-1
All the people who wanted to process multiple files at once are welcome to download it.