Closes #132 - Updated source headers to correct format for Apache License

Pull request for #132

Added maven rat check plugin and added headers to source where
missing.  Included AUTHORS file for copyright notice.
The reasoning behind this tag is solely for validation to pass for the
Sonatype OSS repos. If there's a replacement, I dont have a problem is on
it. Ill dig up the docs when I get back in front of a computer and see the
exact wording.
On Aug 25, 2014 1:37 PM, "Mike Walch" <notifications@github.com> wrote:

> In AUTHORS:
>
> > @@ -0,0 +1,6 @@
> > +AUTHORS
>
> I would prefer if the pom.xml only contained maven configuration and not
> be used to establish copyright for licensing. However, I am OK with
> removing AUTHORS if @keith-turner <https://github.com/keith-turner> &
> @cjnolet <https://github.com/cjnolet> think it should be done.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/fluo-io/fluo/pull/144/files#r16668220>.
>