again.  Removed the following subprojects and folded them into pythoncore,
to match what's being done under VC7.  We *can* build the core DLL
under VC6 again after this:

datetime.dsp
winreg.dsp
parser.dsp
_sre.dsp
_csv.dsp
mmap.dsp
_symtable.dsp

still far away, but a lot closer than it was.