Issue 85 - Remove legacy replication attribute
Bug description: In 389-ds all references to legacy replication
has been removed (except in schema). But if in lib389 a replica
is created it always sets nsds5ReplicaLegacyConsumer: off.
This is no longer needed and confusing.
Fix description: Remove the properties related to legacy
replication attribute. Fix basedn of Replicas object.
Fix replicaLegacy tests.
Reviewed by: mreynolds (Thanks!)
https://pagure.io/lib389/issue/85