Travis: Also test on Ruby 2.1.0.
Travis: Also test on Ruby 2.1.0.

oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs-deployment,oneclickorgs/one-click-orgs,oneclickorgs/one-click-orgs-deployment,oneclickorgs/one-click-orgs-deployment