libhpcalcs: portable (Windows / MacOS X / Linux) connectivity kit library

[Cristian Arezzini]

I tried some transfers... they don't work. If I send an hpprgm to the calculator, I see some activity on the terminal, and then I see the program's name in the calc's programs list... but there's nothing inside except a single "&" character.
I also tried the screen capture, but that too doesn't work...