Exporting variables is unreliable on some platforms including Windows,
and it seems can cause compilation errors in some cases.
Also symbols should not be exported unnecessarily purely on principle.
It would even be possible to move the arrays into the function, but
as they are a bit large that seems to be worse for readability.
Big search and replace to change name of internal namepace so it's mangled with the Boost version number - the aim is to reduce the chances of mixing different header and library versions.
