Added ethereum driver option to CLI See https://gist.github.com/cryptogoth/10a98e8078cfd69f7ca892ddbdcf26bc for details of how to get set up on the Rinkeby test network.  Note that the latest geth is 1.7.1, not 1.6.1, but otherwise those instructions are correct.
Added ethereum driver option to CLI
See https://gist.github.com/cryptogoth/10a98e8078cfd69f7ca892ddbdcf26bc for details of how
to get set up on the Rinkeby test network.  Note that the latest geth is 1.7.1, not 1.6.1,
but otherwise those instructions are correct.

archangel-dlt/archangel-ruby,jezhiggins/archangel-ruby,jezhiggins/archangel-ruby,archangel-dlt/archangel-ruby