* debian/patches/35_fix-driver-package-installation-with-install-printerdriver.patch:
  Simplified communication between system-config-printer and
  install-printerdriver helper script (LP: #1412722).
* debian/patches/37_do-not-crash-on-licensetext-being-none.patch: Crash
  guard for displaying OpenPrinting driver record where the licensetext
  field is None (LP: #1412729).
* debian/patches/40_support-licensetext-in-separate-url.patch: Added support
  for OpenPrinting driver records with license text linked from separate
  download URL (LP: #1412729).