[gutenprint/f16] (3 commits) ...Merge branch 'f14' into f15

[Jiří Popelka]

Summary of changes:

  182b94f... Improve the null-pointer.patch (bug #725447). (*)
  14f296e... Added DeviceID for Epson Stylus D78 (bug #245948). (*)
  13e7b69... Merge branch 'f14' into f15 (*)

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