Include the node in log messages
Disabling this assertion until we figure out lager

The change to lager changed how w configure logging in CouchDB. We'll
need to figure out if we want to update things so that we can configure
lager from the INI files at which point we can either reenable this test
or remove it.
Fix replication.js test

Tweak hard coded assumptions about update_seq ordering for documents
posted to _bulk_updates. See the comment in replication.js for more
information.