Properly use specified sync bindDN in ACLs
Properly specify overlay order
Use HDB by default

Supersedes BDB
Make sure that server is fully initialised before databases can be created

Schema & modules loaded, etc
Don't setup syncprov on a database until the database is configured
Don't try and set a rootpw on a database if none is provided
Don't create an initial BDB database (overlapping with HDB)
Make database data directory configurable
Merge remote branch 'mojolingo/feature/rtc'