issue #315: move yum install to front of generated Dockerfile
issue #315: move yum install to front of generated Dockerfile

Signed-off-by: rcernich <8b2a4a9d59c6787f3d1acdd8f681272c926fa793@redhat.com>

jboss-container-images/concreate,jboss-container-images/concreate,jboss-container-images/concreate