Remove references to dead headers.
Add missing includes
Elsewhere, BOOST_MSVC <= 1300 guards were removed, so make this error early.

If someone is trying to use that old of a compiler, we can at least
let them know of a conscious decision instead of a pile of error messages.
Finish tossing old visual studio support
More Lua 5.1 support.
Adjust build configuration variables and add a configured header.

This header saves the configuration options whose values get baked-in to the library.
Fix a merge error