Update build tools for native mingw * src/build-m4.mk: do nothing for native mingw build * Makefile.in: - add bison, m4 as natve mingw, and python as jit build requirements. - remove build-bison as a mingw build dependancy * index.html: Add msys-bison to mingw required packages and mention ghostscript and python.

#!/usr/bin/env bash

#ec2-174-129-78-72.compute-1.amazonaws.com
#http://s3tools.org/s3cmd

cd ~/mxe && git pull
cd ~/mxe && make download
s3cmd sync --acl-public ~/mxe/pkg/* s3://mxe-pkg/