anchor.diff:    go get -u github.com/alecthomas/gometalinter && \
     /opt/go/bin/gometalinter --install --update
   
  -ENV REFRESHED_AT 2016-04-09
  +ENV REFRESHED_AT 2016-04-10
  
positive.code:   export git=2.8.1 && \
    wget -q -O - https://github.com/git/git/archive/v${git}.tar.gz | tar zxf - && \
    mv git-${git} .build_git && \
    (cd .build_git && make prefix=/usr/local && make prefix=/usr/local install && make clean)
  
  RUN \
    export golang=go1.6 && \
  
negative.code:   apt-get install -qy cmigemo libncurses5-dev exuberant-ctags && \
    apt-get install -qy sdic sdic-edict sdic-gene95 && \
    apt-get install -qy libpython2.7-dev silversearcher-ag texinfo install-info && \
    apt-get install -qy libssl-dev libcurl4-openssl-dev tcl gettext && \
    apt-get install -qy asciidoc
  
  ENV INSTALL_USER developer
  RUN \
  