Update to latest Substrate master (#863)

* Begin to update to latest Substrate master

* Fix compilation

* Remove `Balances` from `OnKilledAccount`

* Update cli/src/command.rs

Co-Authored-By: Cecile Tonglet <cecile@parity.io>

* Change gossip name

* Change again

Co-authored-by: Cecile Tonglet <cecile.tonglet@cecton.com>
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