anchor.diff:  RUN apt-get update \
       && apt-get -y install \
           iptables ca-certificates lxc apt-transport-https \
  -        tmux git vim htop socat man ruby ruby1.9.1-dev \
  +        tmux git vim htop socat man ruby2.0 ruby2.0-dev \
           bash-completion curl python-pygments vim-youcompleteme \
  -        python-pip sshfs \
  +        python-pip python-dev sshfs \
       && apt-get clean \
       && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
   
  
positive.code: 
  # Fuzzy history utility. Seems nicer than hh.
  RUN git clone https://github.com/junegunn/fzf.git /home/.fzf \
      && (cd /home/.fzf && git checkout 0.9.7-1) \
      && (yes | /home/.fzf/install)
  
  RUN wget -O - https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
      tar -C /usr/local -xz
  
  # Interactive grep is pretty nice!
  RUN pip install percol==0.1.0
  
  ADD https://raw.githubusercontent.com/junegunn/vim-plug/0.7.1/plug.vim \
      /home/.vim/autoload/plug.vim
  
negative.code: # cache for this RUN command whenever we want to update this repo.
  RUN git clone https://github.com/themattrix/home.git \
      && cd /home \
      && git checkout e871fd5
  
  # Set locale
  RUN locale-gen en_US.UTF-8 && /usr/sbin/update-locale LANG=en_US.UTF-8
  
  RUN echo 'source ~/.bashrc' >> /home/.bash_profile
  
  RUN gem2.0 install lolcat && gem2.0 install travis -v 1.7.6 --no-rdoc --no-ri
  
  # docker: "The open-source application container engine"
  RUN wget -O /usr/local/bin/docker https://get.docker.com/builds/Linux/x86_64/docker-1.6.0 \
  