Chown Marathon after installation. (#6823)
Chown Marathon after installation. (#6823)

Summary:
The Docker build is broken because the permissions where changed before
the installation. This is correct in this diff.
gsantovena/marathon,mesosphere/marathon,gsantovena/marathon,mesosphere/marathon,gsantovena/marathon,mesosphere/marathon,mesosphere/marathon,mesosphere/marathon,gsantovena/marathon,gsantovena/marathon