Update casper-binary-port 1.1.1 + casper types 6.0.1

[gRoussac]

Before updating to follow dev branches in #16

Maybe you want to stabilize to use casper-binary-port 1.1.1 and types 6.0.1, like the casper client is doing actually.

otherwise

$ cargo update
    Updating git repository `https://github.com/casper-network/casper-node`
    Updating crates.io index
error: failed to select a version for the requirement `casper-binary-port = "^1.0.0"`
candidate versions found which didn't match: 2.0.0
location searched: Git repository https://github.com/casper-network/casper-node?branch=dev
required by package `casper-binary-port-access v0.1.0 (/opt2/casper/casper-binary-port-client/binary-port-access)`