Add xinetd puppetlabs module as a new dependency

Change-Id: Ie0084a1ddacde3c8eba07472519784cf80129879
Prepare repository for a Puppet Forge release

  Commit updates README.md with a consistent template for documentation,
  removes travis.yml since we're on stackfoge now, updates the
  Modulefile for release, removes CHANGELOG in favor of summarized release
  notes in the README that will be viewable on Forge for the new
  release, and moves examples to tests to adhere to Puppet Labs Style
  Guide (http://docs.puppetlabs.com/guides/style_guide.html#tests).

Change-Id: Ic7e672eb6240b0acce7384706aa79b430bd2b003