mokosrec2bin utility imported from the old freecalypso-reveng tree, header comments changed for new understanding and new usage in forward rather than reverse engineering

#!/bin/sh
set -ex
rm -rf binutils-2.21.1
rm -rf binutils-build
rm -rf gcc-4.5.4
rm -rf gcc-build
rm -rf newlib-2.0.0
rm -rf newlib-build