Add electrum config for server version, ping strategy and reconnection#11

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ghost wants to merge 2 commits intomasterfrom unknown repository

+116-47

Commits on Apr 12, 2018

feat: add electrum config for server version, ping strategy and reconnect tries when connection is lost
7kharov
committed

Commits on Jun 2, 2018

feat(persistence): add persistence policy with max retry && final callback
7kharov
committed