refactor and code cleanup


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/class_lib/trunk@56758 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
fetch_rights_from_fors_rights_ws()


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/class_lib/trunk@56760 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
some doc


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/class_lib/trunk@56761 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0