[gegl] (24 commits) Created branch soc-2012-ville

[Ville Sokk <villesokk src gnome org>]

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

Summary of new commits:

  1a21c07... added image-compare operation
  68c15d7... added operation testing tool
  11cca74... changed operation tester to use glib's commandline option p
  381aac3... more informative error messages for operation test tool
  4901fba... removed gallery from docs
  54faaa3... added an option to testing tool to generate output for all 
  ffe73f7... testing tool cleanup
  fe906be... correct size control for testing tool
  1f28555... don't require reference directory with testing tool
  42ed611... removed gallery Makefile from configure.ac
  ef7d256... testing tool: add regular expression for excluding operatio
  cc07dcc... add links to example images in operations.html generation
  740effb... docs: generate example images for operations.html
  7da6b88... docs: added examples directory to .gitignore
  ae44087... testing tool: print names of operations when run with --all
  d4a1803... docs: exclude some workshop operations from example generat
  5305507... docs: show example images in operations.html instead of lin
  79f5912... testing tool: added crop to standard composition to support
  d4b2bbb... added reference compositions to brightness-contrast, color-
  de10429... operations: added reference compositions to lens-distortion
  8d486f5... buffer: new tile-backend-file that writes to disk in a sepa
  a552b13... buffer: added memory mapped file backend
  d648b8e... buffer: threaded memory map file backend
  1fbc1bb... buffer: added missing includes to file backends