[gegl] (10 commits) Created branch soc-2012-ops

[Hans Shu Lo <hanslo src gnome org>]

The branch 'soc-2012-ops' was created.

Summary of new commits:

  f78e305... Shift operation
  76ceebf... Shift Operation: Make sure the pixels on each line are shif
  d02f79f... Shift Operation: Store offsets in chant instead of recalcul
  4dbcc44... Shift Operation: Free memory and move offset generation to 
  fde9a19... Photocopy Operation
  79eb87c... Photocopy Operation: Create and use histogram
  7e71070... Photocopy Operation: Fixes and clean up.
  794d738... Shift Operation: Fix mutex.
  2086c98... Photocopy Operation: Speed operation up
  80296a1... Emboss Operation