remove the VC++ 4.0 project file; remove the unused _tkinter extern defs.

1. Jack Jansen reports that on the Mac, the time may be negative, and
solves this by adding a write32u() function that writes an unsigned
long.

2. On 64-bit platforms the CRC comparison fails; I've fixed this by
casting both values to be compared to "unsigned long" i.e. modulo
0x100000000L.

access).
New location for MacCVS.

Don't rewrite the file in place.
(Reported by Andy Dustman.)

Oops, try again. Test checkin (empty line) to see whether the new mailman-based PythonMac-checkins mailing list works.

Test checkin (empty line) to see whether the new mailman-based PythonMac-checkins mailing list works.

Add a variable %_TCL_% that makes it easier to switch to a different version.

Don't distribute zlib.dll.  Tweak some comments.

unsupported format string.  (I guess this is because the logic for
deciding whether to reallocate the buffer or not has been improved.)
This caused the test code to crash on result[0].  Fix this by assuming
an empty result also means the format is not supported.

than was worth it: when deleting a canvas item, it would try to
automatically delete the bindings for that item.  Since there's
nothing that says you can't reuse the tag and still have the bindings,
this is not correct.  Also, it broke at least one demo
(Demo/tkinter/matt/rubber-band-box-demo-1.py).

Without this, if inflate() returned Z_BUF_ERROR asking for more output
space, we would report the error; now, we increase the buffer size and
try again, just as for Z_OK.