Fixed a broken asciidoctor render test
Merge pull request #203 from bleathem/master

Fixed a broken asciidoctor test
Changed the rsync shellwords escape command to escape only the arguments provided by the user
Merge pull request #204 from bleathem/shellwords

Changed the rsync shellwords escape command to escape only the arguments provided by the user. In spite of all the damn CI failures.
add deployment to Amazon s3

* use the ruby-s3cmd gem and its sync command

The s3 configuration is controlled by the profiles' deploy section which must have `type: s3` and a `bucket` corresponding to the S3 bucket to deploy to.
* For example

    profiles:
      staging:
        deploy:
          type: s3
          bucket: s3://staging.jmesnil.net/
      production:
        deploy:
          type: s3
          bucket: s3://jmesnil.net/
Merge pull request #206 from jmesnil/s3_deploy

add s3 deployment