sys.exutable that isn't usuable on an #!-line. That results in generated
applets that don't actually work. Work around this problem by resetting
sys.executable.
* argvemulator.py didn't work on intel macs. This patch fixes this
(bug #1491468)
in MacPython-OS9 and MacPython-OSX (or the equivalent unix Python on
Mac OS X). The only items remaining in Mac/Lib are modules that are
meaningful only for MacPython-OS9 (CFM stuff, MacPython preferences
in resources, etc).