Fix the definition of BUILD in the VC project settings.

use of $(srcdir) in Makefile.pre.in so builds outside the source dir still
work.

Most of these can be backported.

Subversion revision number.

First, in an svn export, there will be no .svn directory, so use an in-file
$Revision$ keyword string with the keyword chrome stripped off.

Also, use $(srcdir) in the Makefile.pre.in to handle the case where Python is
build outside the source tree.

added refcount information for PyObject_Call

Norwitz)

This code generated a C assertion:
        assert 1, ([s for s in x] +
                   [s for s in x])
        pass

assert was completely broken, it needed to use the proper block.
compiler_use_block() is now no longer used, so remove it.

Needs backport.

Fix _sys_version() so it works with the new buildno, not sure if it is correct.  test_platform passes

Fix some 64-bit issues due to mismatch format characters w/actual data types

Don't double check for NULLs and don't initialize if not necessary.
No functional changes.

Add C API function Py_GetBuildNumber(), add it to the interactive prompt
banner (i.e. Py_GetBuildInfo()), and add it as the sys.build_number
attribute.  The build number is a string instead of an int because it may
contain a trailing 'M' if there are local modifications.

We still need a change in the reference manual to reflect the
new try statement.

Modified since ast-arenas was implemented.

simplifies a lot of error handling code, and fixes many memory leaks.

(reported by Chris Olds).  Backported from the 1.0.6 development
branch.