Infinite failure stack, some bugs fixed (fastmap, star_jump, register bug).

Document how to get exit status of a popen() command.

behind the shell window on NT.

symbols is needed, define these in Python.h with a Py_ prefix.

exception -- return it as a tuple.  Seems useful in promiscuous mode.

- Changed name of fat interpreter to PythonFAT (Python conflicted with toplevel
  folder of the same name, unfortunately)