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5504920ba3
Fixes https://github.com/tendermint/tendermint/issues/751. Adds jitter to our exponential backoff to mitigate a self DDOS vector. The jitter is a randomly picked percentage of a second whose purpose is to ensure that each exponential backoff retry occurs within (1<<attempts) == 2**attempts, but with the delay each client will have a random buffer time before it tries to reconnect instead of all at once reconnections that might even bring back the previous conditions that might have caused the dial to the WSServer to have failed e.g * Network outage * File descriptor exhaustion * False positives from firewalls etc