tools directory is now obsolete.

Still need to think about interoperability with other versions, vendors...

syncrepl update: 1) improve error handling 2) glueing support for non-leaf deletion (TODO : deletion of leaf glue entries in the delete / modrdn code)

sync with the man page slapadd(8) : does not change syncrepl entries in the ldif file when neither of the promotion (-p) or the demotion (-r) option is given.

allow no-user-modification propagations if back-ldap is used for replication (i.e. updatedn is defined)

Make sure sizelimit errors are propagated.

Also, took away abandon operations blank check against deferment.
Abandon must be deferred in some cases (such as when other operations
are pending) and should be deferred in some other cases (such as too
many threads).