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

[Egan Ford]

While I am not having problem with large downloads or small uploads, large uploads from OS/X to the Prime are very troublesome.

While developing Breakout I starting having upload issues around 20K in size. There was no indication on either side of a failed upload except that the file was never updated. If I delete the file, still nothing. After repeated power on/off events I could eventually get an upload. A good sign that an upload worked is that I get kicked out of the program listing view back to home view.

If the calculator is cold (i.e. off for a long time), then the first large upload always works.

Twice I had corrupted uploads.