fix copyrights in all features

From Richard Fontana:

> If you are under general instructions to use "JBoss by Red Hat" for
marketing or branding purposes that's fine.

> The one place where it is not formally correct is in copyright
statements themselves. Those should at least say "Copyright <year> Red
Hat, Inc." (or, as I often recommend for JBoss source code files,
"Copyright <year> Red Hat, Inc. and/or its affiliates".

> The 'provider name' by contrast doesn't matter from a legal
perspective. It doesn't matter to me if there's some inconsistency
between provider name and copyright holder name.