Update peer exchanged

[msterle]

Bring #606 up to date

[msterle]

Interestingly, these tests pass when running locally, even without the updated orbit-db-store package, but fail here on the orbit-db CI. It's possible that this is the sort of timing condition that the peer.exchanged test was trying to capture, but I'll have to look into it more - ideally, the tests should pass or fail consistently, independent of environment.

[aphelionz]

@msterle Looks like we may have js-ipfs 0.41 support soon... that could help.

[msterle]

Test fixed by increasing the time between the final replicate event received and the test for number of peer.exchanged events.

[aphelionz]

I'm curious now if the update from #782 will now fix this! Let's see if we can get it into 0.24.0.

[aphelionz]

@msterle would you mind rebasing this to the latest master? Super curious to see how the tests do

[oed]

@aphelionz Anything blocking this except the rebase?

[aphelionz]

@oed I don't think so!

[oed]

Updated @aphelionz, looks like tests are failing on master as well.

[aphelionz]

@oed @msterle Any chance of getting this rebased one more time now that we have passing tests on master?

[oed]

Done @aphelionz