Only test for 1.8.6, 1.8.7 and ree on travis-ci.org
Only test for 1.8.6, 1.8.7 and ree on travis-ci.org

ohai/yard,travis-repos/yard,thomthom/yard,jreinert/yard,ohai/yard,amclain/yard,thomthom/yard,alexdowad/yard,travis-repos/yard,herosky/yard,lsegal/yard,jreinert/yard,ohai/yard,iankronquist/yard,herosky/yard,lsegal/yard,thomthom/yard,iankronquist/yard,iankronquist/yard,alexdowad/yard,jreinert/yard,lsegal/yard,amclain/yard,alexdowad/yard,amclain/yard,herosky/yard