Update Dockerfile to work with glog.
Docker-DCO-1.1-Signed-off-by: Vishnu Kannan <vishnuk@google.com> (github: vishh)
Remove obsolete Dockerfile.
Docker-DCO-1.1-Signed-off-by: Vishnu Kannan <vishnuk@google.com> (github: vishh)
Merge pull request #174 from vishh/glog

Update Dockerfile to work with glog.