anchor.diff: -FROM ubuntu:trusty
  +FROM ubuntu:xenial
   MAINTAINER KIYOHIRO ADACHI <kiyoad@da2.so-net.ne.jp>
   
   ADD id_rsa.pub /tmp/authorized_keys
   
   ENV DEBIAN_FRONTEND noninteractive
   RUN \
  -  echo "deb http://ftp.riken.jp/Linux/ubuntu/ trusty main multiverse" >> /etc/apt/sources.list && \
  -  echo "deb-src http://ftp.riken.jp/Linux/ubuntu/ trusty main multiverse" >> /etc/apt/sources.list && \
  +  echo "deb http://ftp.riken.jp/Linux/ubuntu/ xenial main multiverse" >> /etc/apt/sources.list && \
  +  echo "deb-src http://ftp.riken.jp/Linux/ubuntu/ xenial main multiverse" >> /etc/apt/sources.list && \
     apt-get update && apt-get upgrade -y && \
  -  apt-get install -qy openssh-server vim && \
  +  apt-get install -qy openssh-server sudo vim && \
     apt-get install -qy language-pack-ja man-db manpages-ja manpages-ja-dev && \
     apt-get install -qy gcc make xz-utils && \
     apt-get install -qy libtinfo-dev libx11-dev libxaw7-dev libgif-dev libjpeg-turbo8-dev libpng12-dev libtiff5-dev libxml2-dev librsvg2-dev libxft-dev libxpm-dev libgpm-dev libsm-dev libice-dev libxrandr-dev libxinerama-dev libgnutls-dev libmagickwand-dev xaw3dg-dev libdbus-1-dev libgconf2-dev libotf-dev libm17n-dev && \
  
positive.code:   go get -u github.com/jstemmer/gotags && \
    go get -u golang.org/x/tools/cmd/godoc && \
    go get -u github.com/alecthomas/gometalinter && \
    /opt/go/bin/gometalinter --install --update
  
  RUN \
    export PATH=$PATH:/usr/local/go/bin && \
  
negative.code:   pip install grip virtualenv flake8 pygments diff-highlight
  
  RUN \
    export git=2.10.1 && \
    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 prefix=/usr/local install-man && make clean)
  
  RUN \
    export golang=go1.7.1 && \
    wget -q -O - https://storage.googleapis.com/golang/${golang}.linux-amd64.tar.gz | tar -C /usr/local -zxf  - && \
    mkdir /opt/go && \
    echo 'export PATH=$PATH:/usr/local/go/bin:/opt/go/bin' >> .profile && \
  