test and fix errors in gossip propigation

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currently TestGossipPropigation is disabled because in some instances the propigation doesn't fully complete, i.e. it doesn't get to every single node in the ring. We need to figure out why, and test lots of other network connection topologies.

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A big part of this turns out to be a bug in libp2p, however, at high volume of gossip, there seems to be some other problems..

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The issues in the gossip propagation tests seem to be due to deeper issues is the DHT model. The failures to propigate don't come from the gossip as much as coming from failures in initial sending to the DHT that happen. For example it seems like in clutter there are some commits that happen during genesis that aren't always getting put to the DHT (perhaps because at the time of genesis those nodes don't have anything in their routing table?). So this ticket is really about adding more tests to prove this, or wait until we update the DHT model to take into account the startup phase.

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After much analysis, we realize that the issue is really that gossip needs to not be about entries but about nodes. Thus this ticket is thus now superceeded by #582