[gimp] (23 commits) Non-fast-forward update to branch wip/pippin

[Øyvind Kolås <ok src gnome org>]

The branch 'wip/pippin' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  3033f55... app: do promotion to float by default in default settings
  25b73d3... app: make levels config request linear colors
  1d02b74... app: make curves tool pick in linear
  11248f1... operations: make levels and curves operate on linear data
  2d84851... app: default many created gimp_histograms to linear
  866ff45... app: hide advanced color options
  15710fe... Enhanced smudge tool: Add painting ability to it. Detailed 
  8267f00... Add "No erasing effect" parameter to MyPaint brush

Commits added to the branch:

  c2b643d... app: For clone tool, pattern source, use the pattern center (*)
  61d9197... app: add some blank lines to gimp_help_get_locales() and fi (*)
  d0c1ae9... plug-ins: minor formatting stuff in wavelet-decompose (*)
  b0d2d4f... app: indentation fix. (*)
  3f7b135... app: fix memory leak in gimp_image_merge_layers() (*)
  3ae9c12... app: fix more leaks in gimp_image_merge_layers() (*)
  2944dbd... Update Polish translation (*)
  f37a28a... Update Chinese (Taiwan) translation (*)
  65d75f0... Update Chinese (Taiwan) translation (*)
  98fb972... Update Chinese (Taiwan) translation (*)
  cd25f1d... Update Chinese (Taiwan) translation (*)
  b349f1a... Update Chinese (Taiwan) translation (*)
  e0dcf53... Bug 781804 - Dodge/Burn tool produces artifacts with negati (*)
  74606d0... app: improve GimpTool::button_release(GIMP_BUTTON_RELEASE_C (*)
  573d6b8... app: change the blend tool graph only if the enpoints were  (*)
  249b09a... app: do promotion to float by default in default settings
  86418c5... app: make levels config request linear colors
  3863e95... app: make curves tool pick in linear
  51199b5... operations: make levels and curves operate on linear data
  c1c51ac... app: default many created gimp_histograms to linear
  3ff75c9... app: hide advanced color options
  73f1217... Enhanced smudge tool: Add painting ability to it. Detailed 
  caf01fb... Add "No erasing effect" parameter to MyPaint brush

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