anchor.diff:  ENV LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8
   
   # Install libfontconfig package - phantomjs (console dependency) depends on this package
  -RUN apt-get install -y libfontconfig
  +RUN apt-get install -y libfontconfig1=2.11.0-0ubuntu4.1
   
   # Install zip
  -RUN apt-get install -y zip
  +RUN apt-get install -y zip=3.0-8
   
   # Copy settings.xml file
   COPY settings.xml /usr/share/maven/conf/settings.xml
   
   # Install tmux and vim for convenience
   RUN apt-get install -y \
  -  tmux \
  -  vim
  +  tmux=1.8-5 \
  +  vim=2:7.4.052-1ubuntu3
   
   # Create platform-parent and artifact output volumes
   RUN mkdir /platform-parent && mkdir /artifacts
  
positive.code:     oracle-java8-set-default
  
  # Maven
  RUN apt-get install -y maven
  
  # Node.js
  RUN apt-get install -y nodejs
  
  # Python
  RUN apt-get install -y \
    python \
    python-dev \
    python-setuptools \
    python-pip
  
  # pip packages
  RUN pip install \
    pyyaml \
    tox \
    virtualenv
  
  # upgrade pip
  RUN pip install -U pip setuptools
  
  # Git
  RUN apt-get install -y git
  
  # FFI lib
  RUN apt-get install -y libffi-dev
  
  # GO
  RUN apt-get install -y \
      bison \
      curl && \
    curl -s -S -L https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer | bash && \
    /bin/bash -c "source /root/.gvm/scripts/gvm && gvm install go1.4.2 && gvm use go1.4.2 && go get github.com/tools/godep" && \
    apt-get install -y gccgo-go && \
    mkdir ~/go-workspace && \
    echo '[[ -s "/root/.gvm/scripts/gvm" ]] && source "/root/.gvm/scripts/gvm"' >> /root/.profile && \
    echo "gvm use go1.4.2" >> /root/.bashrc && echo "gvm use go1.4.2" >> /root/.profile \
  
negative.code: 
  # Java
  RUN apt-get update && apt-get install -y \
      software-properties-common=0.92.37.7 \
      python-software-properties=0.92.37.7 && \
    add-apt-repository ppa:chris-lea/node.js && \
    add-apt-repository ppa:webupd8team/java && \
    apt-get update && yes | apt-get install -y \
  