'release21-maint'.

Windows start-menu item.  This recovers from that.

on the current machine.  Wise doesn't seem to know this itself, and it
varies across Windows flavors.

As the bug report notes, the Windows installer creates a useless pydoc
file in the base directory.  Changed the installer to rename it pydoc.pyw
instead.

to be used in Windows.  They got out of synch.  Repaired that, and added
comments to each one pointing at the other.

This brings up Ping's pydoc server.

(XXX The icons for this and for IDLE seem screwed.  Oh well.)

reachable from Lib/.

STILL NEEDS UNIX BUILD CHANGES.

This involves changing the zlib build process to build zlib itself from sources, then use that library.  Also updated are the comments to reflect the new official home of zlib, and add Windows specific notes regarding the build process.

between passes:  Win9x DOS boxes are limited to 50 lines max, and the result
of the first pass scrolls off irretrievably otherwise.  Also simplified
the goto-laden logic a bit.

New option "-q" to leave .pyc/.pyo alone.

tests for the first time -- like the Unix Makefile does.  This
avoids not catching problems in the bytecode generator and/or bytecode
marshalling.

subproject is gone, replaced by the new pythoncore subproject.