[xsane/f17] (17 commits) ...bump release

[Nils Philippsen]

Summary of changes:

  2ede37c... rebuild against new libjpeg (*)
  9fb740b... Rebuild due to "jpeg8-ABI" feature drop (*)
  d1ec78f... build with -fno-strict-aliasing (*)
  74f55f4... tidy up desktop file (*)
  11cc92f... catch errors when determining the %gimpplugindir macro (*)
  21b46ce... use netpbm pipeline to create 32px PNG icon (*)
  8016dd4... bump release (*)
  bd4c642... Remove vendor tag from desktop file as per https://fedoraho (*)
  1e527c9... Add BR: ImageMagick for identify (*)
  feeefeb... retain vendor tag up to Fedora 18 (*)
  a0dea13... use less obscure constructs to handle the vendor tag (*)
  7c08882... bump release (*)
  0f8a538... fix vendor tag retaining logic (thanks to Toshio Kuratomi) (*)
  fc42da3... Fix vendor tag handling. (*)
  7624328... fix vendor tag logic in a prettier way (*)
  31dc8f9... don't dereference NULL preview objects when quitting (#9636 (*)
  7469bd0... bump release (*)

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