Tweak traceback display for consistency

This patch enhances Python/import.c/find_module() so
that unicode objects found in sys.path will be treated
as legal directory names (The current code ignores
anything that is not a str). The unicode name is
converted to str using Py_FileSystemDefaultEncoding.

Use a repr() on the subprocess side when fetching dict values for stack.
The various dict entities are not needed by the debugger GUI, only
their representation.

the Windowish builds.

trying to delete a .pyc file that didn't exist (it needed to delete .pyo
then).

reason <wink>:  can't unlink an open file on Windows.

Python on Windows without it.

These built-in functions are replaced by their (now callable) type:

    slice()
    buffer()

and these types can also be called (but have no built-in named
function named after them)

    classobj (type name used to be "class")
    code
    function
    instance
    instancemethod (type name used to be "instance method")

The module "new" has been replaced with a small backward compatibility
placeholder in Python.

A large portion of the patch simply removes the new module from
various platform-specific build recipes.  The following binary Mac
project files still have references to it:

    Mac/Build/PythonCore.mcp
    Mac/Build/PythonStandSmall.mcp
    Mac/Build/PythonStandalone.mcp

[I've tweaked the code layout and the doc strings here and there, and
added a comment to types.py about StringTypes vs. basestring.  --Guido]

library.  Since multiple versions can be installed simultaneously, it's
crucial that you only select libraries and header files which are compatible
with each other.  Version checking is done from highest version to lowest.
Building using version 1 of Berkeley DB is disabled by default because of
the hash file bugs people keep rediscovering.  It can be enabled by
uncommenting a few lines in setup.py.  Closes patch 553108.

based on comments from David Abrahams.
Added refcount information for these functions.

when it can.

make -s rules :-)

code.InteractiveConsole to do a much better job.

change color on hover, only those that are link sources (href
attributes).

in the type documentation.

gotten from a weak reference to NULL instead of to None.  This caused
the following assert() to fail (but only in 2.2 in the debug build --
I have to find a better test case).  Will backport.

This closes SF bug #550777.

Write 4 bytes for co_stacksize, etc. to prevent writing out
bad .pyc files which can cause a crash when read back in.

(I forgot that frozen needs to be updated too for the test.)

Write 4 bytes for co_stacksize, etc. to prevent writing out
bad .pyc files which can cause a crash when read back in.

Handle negative indices similar to slices.

This closes SF bug #562878.

Not sure if code is correct, but that is what's in this file.
I've seen \constant{True} in other places.

Warning caused by using &func.  & is not necessary.

optional attribute, only clear the exception when the internal getattr
operation raised AttributeError.  Many places in this file already had
that policy; but just as many didn't, and there didn't seem to be any
rhyme or reason to it.  Be consistently cautious.

Question: should I backport this?  On the one hand it's a bugfix.  On
the other hand it's a change in behavior.  Certain forms of buggy or
just weird code would work in the past but raise an exception under
the new rules; e.g. if you define a __getattr__ method that raises a
non-AttributeError exception.

suggested there, based upon a better analysis (__getattr__ is a red
herring).  Will backport to 2.2.

Cleanup code a bit and return as early as possible.