[gimp] (8 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:

  5a4f0dc... app: unconditionally promote image to linear 32bit floating
  c0b7107... operations: make brightness-contrast, levels and curves ope
  4cb99e9... app: change histogram, to default to linear
  93c5bdc... app: make levels config request linear colors
  8cdf7ec... app: make curves tool pick in linear
  d479da7... app: dither floating point result on load if original is 8b
  6df79fe... app: disable/hide gamma-hack
  ec65170... app: hide advanced color options