filter for docbook records equivalent to marcxchange filters


git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/OpenSearch/trunk@78373 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
changed


git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/OpenSearch/trunk@78376 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
changed


git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/OpenSearch/trunk@78377 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
changed


git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/OpenSearch/trunk@78378 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
defensive code


git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/OpenSearch/trunk@78379 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
more filters and sorts - US 1460, 1461 and 1466


git-svn-id: svn://oss.beweb.dbc.dk/sync_php/php/OpenLibrary/OpenSearch/trunk@78380 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0