dev-ruby: add addressable-2.3.6
dev-ruby: add backports-3.6.0
dev-ruby: add coderay-1.1.0
dev-ruby: add ethon-0.7.0
dev-ruby: add highline-1.6.21
dev-ruby: add json-1.8.1
dev-ruby: add launchy-2.4.2
dev-ruby: add method_source-0.8.2
dev-ruby: add multi_json-1.10.0
dev-ruby: add multipart-post-2.0.0
dev-ruby: add faraday-0.9.0
dev-ruby: add faraday_middleware-0.9.1
dev-ruby: add net-http-persistent-2.9.4
dev-ruby: add net-http-pipeline-1.0.1
dev-ruby: add gh-0.13.2
dev-ruby: add pry-0.9.12.6
dev-ruby: add typhoeus-0.6.8
dev-ruby: add websocket-1.1.4
dev-ruby: add pusher-client-0.6.0
dev-ruby: add travis-1.6.10