- Overhaul the way we handle with LDAP data directory, populate
the data directory upon start, not upon install. 
- Update to OpenLDAP 2.4.11.
- Modify bsd.port.mk to fit with the shared libary version bump 
This has no impact to package building yet as 2.4.x is not the
Submitted by: Mikhail Goriachev <mikhailg webanoide org> 
Approved by: portmgr (marcus)