Examples now cover a wider request/response

git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/OpenXId/trunk@73553 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
isbn added

git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/OpenXId/trunk@73554 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0