[gimp] (12 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:

  d2b3bed... app: make levels config request linear colors
  690073e... app: make curves tool pick in linear
  4bc312d... operations: make brightness-contrast, levels and curves ope
  6caeb74... app: default many created gimp_histograms to linear
  11ff7e8... app: unconditionally promote image to linear 32bit floating
  75312c0... app: dither floating point result on load if original is 8b
  c3aabc6... png: add a combo-box for specifying png bitdepth/variant
  0d12621... app: hide advanced color options
  c49ef23... app: make more layer modes be linear, moving towards RGBA d
  983dd2b... app: add abstraction for separate blend and composite modes
  4868d6a... app: replace softlight code with blendfun
  3d7d11d... app: gimp_composite_blend do a copy of blend_out SRC_IN