Printer autodetect

[Fanourgakis Manolis <mfanou@gmail.com>]

<autodetect>
  <usb>
    <commandset>PCL,DW-PCL,DESKJET,DYN</commandset>
    <description>CH340B</description>
    <manufacturer>HP</manufacturer>
    <model>Deskjet 1000 J110 series</model>
  </usb>
</autodetect>