[Initial darcs import. bringert@cs.chalmers.se**20051125121936] [Changed to OpenDocument presentation format. bringert@cs.chalmers.se**20051125132747] [Customized for the db course. bringert@cs.chalmers.se**20051128101319] [Finished customization. bringert@cs.chalmers.se**20051128102117] [Added further info slide. bringert@cs.chalmers.se**20051128102946] [Renamed file. bringert@cs.chalmers.se**20051129102833] [Renamed for 2006 vt. bringert@cs.chalmers.se**20060418132218] [Updated footer for sptring 2006. bringert@cs.chalmers.se**20060418132949] [Updated for fall 2006. Some minor typo fixes. bringert@cs.chalmers.se**20061204180128]