Update db_to_seq table when _replicator db deleted
Update db_to_seq table when _replicator db deleted

If a _replicator db is deleted then recreated the db_to_seq ets
table needs to be updated, otherwise the sequence will be out of sync
and replication docs can fail to trigger.

BugzID: 12759

fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb