lua53-luasql-2.4.0-bp156.3.6

- Upgrade to 2.4.0:
  * Added support in MySQL driver for opening a connection
    based on a Unix socket (thanks to rafis)
  * Added connection ping method (thanks to rafis)
  * Added Makefile for mingw (thanks to watercoldyi)
  * Bug correction on retrieving varchar2 data (thanks to David
    Gao)
- Rewrite to multibuild, standard openSUSE Lua SPEC file.

- Initial build.
- Add luasql-fix-configuration.patch: Clean up building and add rpm
  optflags.