Moved RPM installations from init scripts to image.

continuousintegration/buildtree_runner/prepareImage.sh

...ation/buildtree_runner/vmBootstrap/bootstrapKubernetes.sh

continuousintegration/docker/buildtree-runner/cc7/Dockerfile

...gration/docker/buildtree-runner/cc7/opt/run/bin/ctacli.sh

...ion/docker/buildtree-runner/cc7/opt/run/bin/ctaeos-mgm.sh

...on/docker/buildtree-runner/cc7/opt/run/bin/ctafrontend.sh

...tegration/docker/buildtree-runner/cc7/opt/run/bin/init.sh

...ntegration/docker/buildtree-runner/cc7/opt/run/bin/kdc.sh

...tegration/docker/buildtree-runner/cc7/opt/run/bin/rmcd.sh

...egration/docker/buildtree-runner/cc7/opt/run/bin/taped.sh