[Distutils] wheels on sys.path clarification (reboot)

Eh, I think both 1 and 3 are things that are possibly reasonable to happen and they are both things that I've contemplated as things to bring forward in using xz as an alternative compression format. Even if #1 would need a major revision of Wheel to happen adding official "support" for zip import means that the change would have to be weighed against also breaking that backwards compatibility.

Eh, please don’t break it!! Improve! Keep the ability to add wheels to python path. I don’t care how, zip import, non-zip import, whatever - allow for jar-like behavior - people will thank you if it will work properly !;) I know, i’m probably alone in the desert…l;)