2008-04-25  Øyvind Kolås  <pippin@gimp.org>

	Added a diff based test suite for tracking the stability
	of GeglBuffer's core set of operations.

	* tests/buffer/Makefile:
	* tests/buffer/README:
	* tests/buffer/buffer-test.c:

	The following are reference images for the GeglBuffer tests.
	
	* tests/buffer/reference/buffer_inherit_parent_extent:
	* tests/buffer/reference/buffer_shift_diagonal:
	* tests/buffer/reference/buffer_shift_horizontal:
	* tests/buffer/reference/buffer_shift_vertical:
	* tests/buffer/reference/disabled_abyss:
	* tests/buffer/reference/sub_rect_fills_and_gets:
	* tests/buffer/reference/sub_sub_fill:
	* tests/buffer/reference/test_blank:
	* tests/buffer/reference/test_checkerboard:
	* tests/buffer/reference/test_gegl_buffer_copy:
	* tests/buffer/reference/test_get_buffer_scaled2:

svn path=/trunk/; revision=2231