[gimp] (13 commits) Created branch pippin/linear-is-the-new-black

[Øyvind Kolås <ok src gnome org>]

The branch 'pippin/linear-is-the-new-black' was created.

Summary of new commits:

  c1ec7cc... app: do not let pixel encoding determine layer modes
  3c9c3f7... app: duplicate normal mode, one linear and one sRGB
  3c9bc2e... app: add more non-linear/linear alternative layer modes
  17cfe51... XCF: add new linear layer modes
  18836d0... app: unconditionally promote image to linear 32bit floating
  34eca0f... app: dither floating point result on load if original is 8b
  17a566f... png: add a combo-box for specifying png bitdepth/variant
  b34ceec... app: make levels config request linear colors
  36cd24d... app: make curves tool pick in linear
  49e67b7... operations: make brightness-contrast, levels and curves ope
  a8d2e1c... app: default many created gimp_histograms to linear
  a5c6d78... app: hide advanced color options
  8b308a1... app: brightness-contrast scale contrast around 50% gray