anchor.diff:  RUN easy_install -U pip
   RUN pip install -U crcmod
   
  -# Installing nodejs 0.12
  -RUN curl -sL https://deb.nodesource.com/setup_0.12 | bash -
  -RUN apt-get update && apt-get install -y nodejs && \
  -    apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  +# Installing node:
  +RUN curl https://deb.nodesource.com/node_0.12/pool/main/n/nodejs/nodejs_0.12.7-1nodesource1~jessie1_amd64.deb > node.deb \
  + && dpkg -i node.deb \
  + && rm node.deb
   
  -# Installing npm and some useful packages:
  -RUN curl -L https://npmjs.com/install.sh | sh
  +RUN npm install -g pangyp\
  + && ln -s $(which pangyp) $(dirname $(which pangyp))/node-gyp\
  + && npm cache clear\
  + && node-gyp configure || echo ""
  +
  +ENV NODE_ENV production
   
   RUN npm install -g js-beautify uglify-js uglifycss firebase firebase-token-generator webdriverio \
         mocha expect.js
  
positive.code:         python \
          python-dev \
          python-setuptools \
          screen \
          sudo \
          supervisor \
  
negative.code: ENV DEBIAN_FRONTEND noninteractive
  RUN apt-get update && \
      apt-get install -y --no-install-recommends \
          apt-transport-https \
          bash-completion \
          build-essential \
          ca-certificates \
          clang \
          cron \
          curl \
  