Add run script.
Add run script.

This script allows you to launch several images
from this repository once they're built.

Make sure you add the `docker run` command
in the header of the Dockerfile so the script
can find it and execute it.

Use pulseaudio/Dockerfile and skype/Dockerfile as examples.

Signed-off-by: David Calavera <b9b0c8e7f90ecf337f6797c4d2e0f1dd0dbc0324@gmail.com>

koep/dockerfiles,ricardorsierra/dockerfiles,johnsandiford/dockerfiles,konstruktoid/dockerfiles,alanbrent/dockerfiles,saneax/dockerfiles,michael-k/dockerfiles-jfrazelle,konstruktoid/dockerfiles,koep/dockerfiles,konstruktoid/dockerfiles,ricardorsierra/dockerfiles,jfrazelle/dockerfiles,koep/dockerfiles,rothgar/dockerfiles,alanbrent/dockerfiles,rothgar/dockerfiles,johnsandiford/dockerfiles,saneax/dockerfiles,koep/dockerfiles,johnsandiford/dockerfiles,jfrazelle/dockerfiles,alanbrent/dockerfiles,koep/dockerfiles,jessfraz/dockerfiles,jessfraz/dockerfiles,jessfraz/dockerfiles,michael-k/dockerfiles-jfrazelle,michael-k/dockerfiles-jfrazelle,jessfraz/dockerfiles,jessfraz/dockerfiles,johnsandiford/dockerfiles,ricardorsierra/dockerfiles,ricardorsierra/dockerfiles,ricardorsierra/dockerfiles,konstruktoid/dockerfiles,johnsandiford/dockerfiles,rothgar/dockerfiles,michael-k/dockerfiles-jfrazelle,michael-k/dockerfiles-jfrazelle