"this is an altered version" statement

 - syncrepl : id -> rid
 - man page update

1) simultaneous operation of multiple active sync replication threads
2) cookie management for individual sync replication thread
   (include rid=%3d to the slapd cookie command line option (-c))

update misc notices

libldif to libutil updates
notice updates

move libldif to liblutil
Berkeley DB 4.2 support