First, remove that comment from inside the replica directive. I think you know that, You've commented out all of acls from master and gave full write access in slave, but the correct way is give full read to the user(replicauser) defined in binddn on maste and full write in slave.
Full read access to replicauser in the master ??? IIRC nothing is said about that in the admin guide.
Regards, Thierry.