Check and maintain upgrades

[mainframed]

Check the current dataset version and compare to whats available on git/disk and noted which software has new versions available for install.

[meltdown03]

RPF is up to 1.9.5 at https://www.prince-webdesign.nl/index.php/software/57-rob-s-programming-facility-en
NJE38 is at 2.4.2 at https://github.com/moshix/nje38mvs
Not sure how to submit them at PR's for MVP to use them. In regards to NJE38, does MVP build it from source? I've only seen the tape file.
And for RPF, it's 4 seperate XMIT files.