- Patch #29910 by m3avrck, nsk, Thomas et al: added a mysqli database backend...

- Patch #29910 by m3avrck, nsk, Thomas et al: added a mysqli database backend for use with PHP5 and MySQL 4.1 and above.

  NOTE: I don't have MySQL 4.1 setup at the moment so I could _not_ test this patch.  Luckily, various people reported that it works.