[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:

  8e0a8c0... app: make levels config request linear colors
  47bf79d... app: make curves tool pick in linear
  dc32d37... operations: make levels and curves operate on linear data
  326158b... app: default many created gimp_histograms to linear
  5e795f7... app: re-arrange some color related menu items
  aa6d60d... app: hide advanced color options
  62e8b69... app: start implementing consolidated non-legacy blend mode 
  5b00e0f... app: make layer mode class capable of doing layer modes