[hplip/f13/master] (4 commits) ...Merge branch 'f12' into f13

[Tim Waugh]

Summary of changes:

  e4ce154... Use correct fax PPD name for Qt3 UI. (*)
  473db4c... Added another SNMP quirk for an OfficeJet Pro 8500 variant. (*)
  d6ff8e4... Bumped release in changelog. (*)
  62a88db... Merge branch 'f12' into f13 (*)

(*) This commit already existed in another branch; no separate mail sent