Add a new member to the PyBufferProcs struct, bf_getcharbuffer.  For
backward compatibility, this member should only be used (this includes
testing for NULL!) when the flag Py_TPFLAGS_HAVE_GETCHARBUFFER is set
in the type structure, below.  Note that if its flag is not set, we
may be looking at an extension module compiled for 1.5.1, which will
have garbage at the bf_getcharbuffer member (because the struct wasn't
as long then).  If the flag is one, the pointer may still be NULL.
The function found at this member is used in a similar manner as
bf_getreadbuffer, but it is known to point to 8-bit character data.
(See discussion in getargs.c checked in later.)

As a general feature for extending the type structure and the various
structures that (may) hang off it in a backwards compatible way, we
rename the tp_xxx4 "spare" slot to tp_flags.  In 1.5.1 and before,
this slot was always zero.  In 1.5.1, it may contain various flags
indicating extra fields that weren't present in 1.5.1.  The only flag
defined so far is for the bf_getcharbuffer member of the PyBufferProcs
struct.

Note that the new spares (tp_xxx5 - tp_xxx8), once they become used,
should also be protected by a flag (or flags) in tp_flags.

Install zlib.dll in DLLs instead of windows32 system directory.
Install freeze, webchecker and versioncheck tools.
Add Content type: text/plain registry keys for .py, .pyw.
Add file type .pyo (same as .pyc).

meant for checkin, and which broke marshal.loads().

LoadLibraryEx(pathname, NULL, LOAD_WITH_ALTERED_SEARCH_PATH)
to search dependent DLLs in the directory of the pathname.

as the code string of code objects, as long as they support
the (readonly) buffer interface.  By Greg Stein.

\subparagraph sections.  Indicate the default in the --help message.

pass options to latex2html.

Also (non-BSDI specific):

- Change the CHECK_STATUS() macro so it tests for nonzero error codes
instead of negative error codes only (this was needed for BSDI, but
appears to be correct according to the PTHREADS spec).

- use memset() to zero out the allocated lock structure.  Again, this
was needed for BSDI, but can't hurt elsewhere either.

Remove unused decls of getloclock() and is_lockobject().

(1) add dummy decl for strptime();
(2) move the code to set accept2dyear to the front of inittime().

outline.

Work around font-long bogosity caused by ' in docstring.

Noted by Greg Stein.

scripts pynche.py and pynche.pyw for Unix and Windows startup
respectively.  Document the .pyw file in the README.