Final name

Turns out elua and luaxx already taken, though not in sourceforge. And upon thinking about it, using luacxx (which was available) was not great either since Lua bindings are typically of that pattern "lua" + language. But now I think I finally found a name that is descriptive of the library, easy to pronounce, yet will be easy to search for: lua_icxx (i is for interpreter, cxx for C++). Pronounce "lua" -- "ix".