There's a new release of js-IPFS around the corner, one of the things it
does is turn on pubsub by default so needs a little code tweaking to work.
This PR contains the changes required to get orbit-db working with the
latest release candidate.
Fix default database creation tests
Add more test utils
Remove obsolete public methods from OrbitDB
Workaround for "underlying socket has been closed" error in replication test
Update package-lock