Fix for 3488 : Replication initialization or quicksetup sometime fails
 
The problem was that after a full update the ReplicationDomain restarts
the broker before reloading the serverState and generationID.

Therefore if the session establishment phase was faster than the initialize thread
the generationID that was sent to the ReplicationServer was the old one.

The solution is to move the reload of the serverState and generationID
before the broker.restart() in ReplicationDomain.initialize()