Just pushed 3.1.7.26: RUN-PROGRAM extensions

I have just pushed 3.1.7.26, which features merge of Elias Pipping's extensive re-engineering of UIOP:RUN-PROGRAM, and addition of UIOP:LAUNCH-PROGRAM. Thanks to Elias for an enormous amount of work.

Thanks also to Faré for his extensive reviewing, to Daniel Kochmanski for his extensive work on UIOP (and apologies for my inability to figure out how to put an accent properly in his name!).

RUN-PROGRAM has changed quite a bit, and whenever we move to a new release, I propose to bump to 3.2, to make it easier for people to detect these extensions.

Best, Robert