7.0 metafiles

I think, you also need to install wkhtmltopdf:

  - sudo wget http://downloads.sourceforge.net/project/wkhtmltopdf/0.12.1/wkhtmltox-0.12.1_linux-precise-amd64.deb -P /tmp/
  - sudo dpkg -i /tmp/wkhtmltox-0.12.1_linux-precise-amd64.deb