doc


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/OpenBibdk/trunk@63545 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
rankFrequency


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/OpenBibdk/trunk@63613 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
rank_frequence_debug


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/OpenBibdk/trunk@63614 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0