anchor.diff:  
   EXPOSE 80
   
  -# Make start.sh executable
  +# Make start.sh executable.
   RUN chmod 755 /start.sh
  
positive.code: RUN curl -sS https://getcomposer.org/installer | sudo php -- --install-dir=/usr/local/bin -d detect_unicode=0
  RUN sudo ln -s /usr/local/bin/composer.phar /usr/local/bin/composer
  
  # Drush and dependencies
  RUN /usr/local/bin/composer global require drush/drush:dev-master
  RUN /.composer/vendor/drush/drush/drush --version
  
  # Enable a2enmod rewrite
  RUN a2enmod rewrite php5
  
  # Supervisord.
  
negative.code: RUN DEBIAN_FRONTEND=noninteractive apt-get autoclean
  RUN DEBIAN_FRONTEND=noninteractive apt-get autoremove
  
  # Serverspec.
  RUN gem install bundler -v 1.6.3 2>/dev/null 
  RUN gem install serverspec rake 2>/dev/null
  
  # PHPENV.
  RUN git clone https://github.com/CHH/phpenv.git /tmp/phpenv
  RUN /bin/bash /tmp/phpenv/bin/phpenv-install.sh
  RUN scp /tmp/phpenv/extensions/* $HOME/.phpenv/libexec/
  
  RUN echo 'export PATH="//.phpenv/bin:$PATH"' >> /$HOME/.bashrc
  RUN echo 'eval "$(phpenv init -)"' >> /$HOME/.bashrc
  ENV PATH /home/travis/.phpenv/shims:/home/travis/.phpenv/bin:$PATH
  
  