anchor.diff:                      mercurial \
                       mercurial-common && \
     apt-get clean && \
  +  apt-get autoremove && \
     rm -rf /var/lib/apt/lists/*
   # Official Debian and Ubuntu images automatically run apt-get clean
   
  
positive.code: RUN chmod a+rX /srv/templates
  #USER root
  
  RUN apt-get clean && \
      apt-get autoremove && \
      rm -rf /var/lib/apt/lists/*
  
  ### Copy demonstration notebook and config files to home directory
  COPY Prometheus_demo.ipynb /home/$NB_USER/work/
  COPY jupyter_notebook_config.py /home/$NB_USER/.jupyter/
  
negative.code: 
  ENV VNRN 7.4
  ENV VIV 19
  RUN cd /root; wget -q http://www.neuron.yale.edu/ftp/neuron/versions/v$VNRN/nrn-$VNRN.tar.gz
  RUN cd /root; wget -q http://www.neuron.yale.edu/ftp/neuron/versions/v$VNRN/iv-$VIV.tar.gz
  RUN mv /root/nrn-$VNRN.tar.gz /root/iv-$VIV.tar.gz $NDIR/
  RUN cd $NDIR; tar xzf iv-$VIV.tar.gz; rm iv-$VIV.tar.gz; mv iv-$VIV iv
  RUN cd $NDIR; tar xzf nrn-$VNRN.tar.gz; rm nrn-$VNRN.tar.gz; mv nrn-$VNRN nrn
  