Add ka-map example file. This is a PHP file, slightly modified from t…

…he distribution, and combining the tile.php and config.php files into one, so that users only have to use one file to set up a ka-map backend.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@1001 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf