Releasing

• Ensure the tests are passing.
• Determine which would be the correct next version number according to semver.
• Update the version in ./lib/sshkit/version.rb.
• Update the CHANGELOG.
• Commit the changelog and version in a single commit, the message should be “Preparing vX.Y.Z”
• Tag the commit git tag vX.Y.Z (if tagging a historical commit, git tag can take a SHA1 after the tag name)
• Push new commits, and tags to Github.
• Push the gem to rubygems.