[gimp] (39 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:

  5113f12... app: do promotion to float by default in default settings
  f1da20d... app: make levels config request linear colors
  d5c4962... app: make curves tool pick in linear
  2c5fcda... operations: make levels and curves operate on linear data
  8772035... app: default many created gimp_histograms to linear
  9792feb... app: hide advanced color options

Commits added to the branch:

  6c806aa... Update German translation (*)
  2e9abfb... Update German translation (*)
  257a4ce... Update Polish translation (*)
  b6ffcca... app: default to "no grid" for transform tools (*)
  a9c6bc0... app: some cleanup in GimpTransformTool (*)
  7c7a1b6... app: integer-ify position/offset members of GimpSourceCore (*)
  d8e8a27... app: in tools, show source location indicator at pixel cent (*)
  6c8ba75... Bug 779632 - Clone tool jittering (*)
  913b54d... tools: fix visible "plug-in" strings in PDB sources. (*)
  2d22d0b... Bug 780907 - GIMP 2.9.5 layer-blending-mode Tear (*)
  f030511... Bug 315051 - Image preview in transforms keeps original ver (*)
  32239a2... Bug 315051 - Image preview in transforms keeps original ver (*)
  16bebed... pdb: add debug group; add debug-timer-{start,end} procs (*)
  b7ee733... libgimp: add new functions to gimp.def (*)
  c585c99... Bug 740634 - Color picker crashes when there are multiple m (*)
  da30b86... Bug 780859 - Brush hardness blur is slow (*)
  257504c... Bug 780859 - Brush hardness blur is slow (*)
  3bed373... app: various brush hardness improvements (*)
  810f1fc... app: disable brush blur caching (*)
  20c9b60... PCX: Stop parsing an invalid file early on. (*)
  670be1f... app: fix brush offset when shrinking to compensate for blur (*)
  5255d91... app: fix total weight calc. of hardness convolution kernel (*)
  10f12bd... PCX: Avoid segmentation fault with invalid file. (*)
  8c10194... configure: disable vector icons on Windows with GTK+ < 2.24 (*)
  68e15ad... configure: fix a PKG_CHECK_MODULES() test. (*)
  13ed12d... plug-ins: avoid OOB write on malicious GIH files. (*)
  03f9f2e... Update Greek translation (*)
  5b13540... Bug 781098 - only build invert-svg with --enable-vector-ico (*)
  d4bb12d... app: fix painting with force == 0 (*)
  0a42c6b... pdb: fix input range of context-set-brush-size (*)
  81a44d5... build: remove workaround for a flatpak bug. (*)
  d289ee6... app: do promotion to float by default in default settings
  963df9e... app: make levels config request linear colors
  2a40079... app: make curves tool pick in linear
  17c7366... operations: make levels and curves operate on linear data
  d17f6b8... app: default many created gimp_histograms to linear
  40f0864... app: hide advanced color options
  10e9c9d... Enhanced smudge tool: Add painting ability to it. Detailed 
  da95c04... Add "No erasing effect" parameter to MyPaint brush

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