[gimp] (10 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:

  4884427... app: make levels config request linear colors
  455a8c8... app: make curves tool pick in linear
  b1aa513... operations: make brightness-contrast, levels and curves ope
  edb2a18... app: default many created gimp_histograms to linear
  6bb572d... app: unconditionally promote image to linear 32bit floating
  78f4132... app: dither floating point result on load if original is 8b
  0f7cd9f... png: add a combo-box for specifying png bitdepth/variant
  f858df7... app: hide advanced color options
  e214e72... app: do not let pixel encoding determine layer modes
  c903150... app: add new multiply op