Wiping back and commencing from CSS

The previous push only crashed when loading, I wiped back to  CSS from
the distribution and did some minor changes to it (css -> mapcss, etc)
Copy of license code + improved README

Added copy of GNU GPL v2 to document what LICENSE I develop under, and
improved the README
Small adjustment in install script version warning

Small adjustment in install script version warning (we do support
higher versions than 4 also)