anchor.diff:  #   http://docs.travis-ci.com/user/ci-environment/#Extensions
   #   https://devcenter.heroku.com/articles/php-support
   # Xdebug, most recent PECL version
  +ADD ./files/etc/php5 /etc/php5
   RUN apt-get install -y php5 php5-cli php5-fpm \
           php5-curl php5-gd php5-json php5-pgsql php5-readline php5-sqlite \
           php5-tidy php5-xmlrpc php5-xsl php5-intl php5-mcrypt php5-mysqlnd \
  
positive.code:     sudo -i -u ubuntu HOME=/home/ubuntu bash -i /etc/bash_completion && \
      HOME=/root bash -l /etc/bash_completion
  
  ADD ./files/home/ubuntu /tmp/homedir
  RUN cp /tmp/homedir/.gitignore /tmp/homedir/.hgignore && \
      mkdir -p /tmp/homedir/lib/apache2/lock /tmp/homedir/lib/apache2/log /tmp/homedir/lib/apache2/run && \
  
negative.code: ENV DEBIAN_FRONTEND noninteractive
  
  # increment version to force flushing the cache
  RUN echo "Version 1.9"
  
  RUN apt-get update --fix-missing && apt-get -y dist-upgrade
  RUN apt-get install -y bash console-setup sudo wget curl git python software-properties-common man-db && \
  