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

[Tim Waugh]

Summary of changes:

  1bba1aa... Added IEEE 1284 Device ID for Designjet T770 (bug #747957). (*)
  3ae281b... Merge branch 'f14' into f15 (*)
  2808bbe... Merge branch 'f15' into f16

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