FIX replication of multiple clients

FIX do not reuse port

FIX `couchdb-server` plugin missed out events from the replication

Merge branch 'master' of https://github.com/pubkey/rxdb

FIX couchdb tests

FIX docs format

FIX pubkey#3939 Replication does not respect batchSize parameter

Update 13.0.0.md

FIX docs

Merge branch 'master' of https://github.com/pubkey/rxdb