Update newrelic_rpm dependency to version 3.5.6.55
Update multi_json dependency to version 1.6.1
Update ffi dependency to version 1.4.0
Update high_voltage dependency to version 1.2.2
Revert "Update net-scp dependency to version 1.0.6"

This reverts commit 2867319fa8346d12b9a48a19477fd5641ec4b7e9.
Update webmock dependency to version 1.9.2
Update excon dependency to version 0.17.0
Cleanup trailing whitespace
Fix functional tests
Fix other functional test
Update addressable dependency to version 2.3.3
Update webmock dependency to version 1.9.3
Update selenium-webdriver dependency to version 2.30.0
Update newrelic_rpm dependency to version 3.5.7.59
Update coderay dependency to version 1.0.9
Update unicorn dependency to version 4.6.1
Update excon dependency to version 0.18.5