anchor.diff:  USER root
   RUN mkdir -p /opt/couchdb
   RUN chown -R couchdb.couchdb /opt/couchdb
  +RUN npm install -g grunt-cli
   USER couchdb
   RUN make install
   RUN git log > /opt/couchdb/.git.log
  
positive.code:   erlang-nox \
    git \
    libicu-dev \
    libmozjs185-dev
  RUN apt-get --no-install-recommends -y install \
    erlang-reltool
  
negative.code: 
  # avoid interactive dialoges from apt:
  ENV DEBIAN_FRONTEND noninteractive
  
  # Repositories
  RUN echo 'deb http://http.debian.net/debian wheezy-backports main' > /etc/apt/sources.list.d/wheezy-backports.list
  RUN apt-get update -q
  
  # Install prereqs
  RUN apt-get update && apt-get --no-install-recommends -y install \
  