Addition of jstribny to commiters

Heya all, I've just added jstribny to commiters. He'll try to take care of/update Ruby guidelines so that they are up to date. I don't think you would mind but just to make sure you are aware of it :-) -- Stanislav Ochotnicky <sochotnicky(a)redhat.com&gt; Software Engineer - Developer Experience PGP: 7B087241 Red Hat Inc. http://cz.redhat.com