get_inifile_hash() as a md5-hash of the content of the file


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/class_lib/trunk@63920 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0
bugfix


git-svn-id: svn://oss.dbc.dk/sync_php/php/OpenLibrary/class_lib/trunk@63921 30e9dc4a-7611-4fbc-83ba-eecf79b76bd0