VP IDLE version depended on VP's ExecBinding.py and spawn.py to get the
path to the Windows Doc directory (relative to python.exe). Removed this
conflicting code in favor of py-cvs updates which on Windows use a hard
coded path relative to the location of this module. py-cvs updates include
support for webbrowser.py.  Module still has BrowserControl.py for 1.5.2
support.

At this point, the differences wrt py-cvs relate to menu functionality.

Colorize "as" after "import" / use DEBUG instead of __debug__

"Add Alt-slash to Unix keydefs (I somehow need it on RH 6.2).
Get rid of assignment to unused self.text.wordlist."  --GvR

tuple instead two arguments.

'spawnv' now, so we check for 'fork' first.