[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:

  8c6c93a... app: make levels config request linear colors
  e5ae773... app: make curves tool pick in linear
  7782183... operations: make brightness-contrast, levels and curves ope
  7b0c352... app: default many created gimp_histograms to linear
  c4abf1b... app: unconditionally promote image to linear 32bit floating
  ac35e7f... app: dither floating point result on load if original is 8b
  3db2a3e... png: add a combo-box for specifying png bitdepth/variant
  66e4123... app: hide advanced color options