Bug: Lua dependency

OpenBlox depends upon Lupa as a Lua-Python binding, and as Lupa depends upon Lua, OpenBlox depends upon Lua as well.

Still with me? Good!

This means you have to download and install Lua to use OpenBlox.
See the README at https://sourceforge.net/projects/openblox/files/Releases/README.txt/download to see how to download the Lua libraries.