[gegl] (20 commits) Created branch soc-2011-warp

[Michael Murà <mmure src gnome org>]

The branch 'soc-2011-warp' was created.

Summary of new commits:

  dbc0b6d... add a buffer-cache op in the workshop
  4bcb62c... add a wip operator warp in the workshop, and dedicated enum
  cbd9369... gegl:warp: rename warp_private to WarpPrivate and fix compi
  ecc2dd0... configure.ac: add a check for rint, and define HAVE_RINT ac
  ee9e4d2... gegl_buffer_dup: implement copy on write
  1242e1e... simplify gegl_buffer_tile_iterator by removing unneeded cod
  19f9bef... gegl_tile_iterator: simplify again and remove a goto
  5d43ace... gegl:warp: don't stamp if oustide the roi
  ec51cca... gegl_buffer_dup: use the cache to insert duplicated tiles
  4cdf4c8... gegl:warp: add code to test copy on write
  11f3a81... prefix function point_lerp and point_dist with gegl_path_
  eaba315... gegl-path: fix outdated documentation
  4e0676b... gegl-path: remove dead code and potential security issue in
  2ab8d5c... gegl-path: remove wrong code. After searching in the commit
  204740d... warp: compute the stamp curve without the strength factor
  27d0388... warp: set the range for the strength to 1-->100
  69f97d2... warp: store the lookup table as double and perform a linear
  6b6efbc... warp: balance a bit the different behaviors
  4c94b76... implement support for format_n buffer in the nearest neighb
  ef5331c... fix slightly wrong merge