Upgrading to latest CI configuration including the following:

[rayrod2030]

1. CONTRIBUTING file and README update
2. New Gemfile
3. Rakefile for Travis
4. Kitchen ec2 file for CI
5. EC2 CI tags
6. New CHANGELOG formatting
7. Checkstyle Gem

[medidata]

Test PASSED! 👍
Refer to this link for build results: http://ec2-54-221-39-184.compute-1.amazonaws.com:8080/job/marathon_cookbook_test/2/

[medidata]

Test PASSED! 👍
Refer to this link for build results: http://ec2-54-221-39-184.compute-1.amazonaws.com:8080/job/marathon_cookbook_test/3/

[medidata]

Test failed. 💩
Refer to this link for build results: http://ec2-54-221-39-184.compute-1.amazonaws.com:8080/job/marathon_cookbook_test/4/

[medidata]

Test PASSED! 👍
Refer to this link for build results: http://ec2-54-221-39-184.compute-1.amazonaws.com:8080/job/marathon_cookbook_test/5/

[medidata]

Test failed. 💩
Refer to this link for build results: http://ec2-54-221-39-184.compute-1.amazonaws.com:8080/job/marathon_cookbook_test/6/

[harryw]

Do you still want this commented-out code for some reason?

[rayrod2030]

I'm overhauling this PR so this part is going to change.

[medidata]

Test failed. 💩
Refer to this link for build results: http://ec2-107-22-53-102.compute-1.amazonaws.com:8080/job/marathon_test/1/

[harryw]

@rayrod2030 are you still planning to update this PR?

[harryw]

@rayrod2030 I'm closing this PR for now. If/when you'd like to make further changes we can easily reopen it or replace it.