patch by John Marshall. (bug #47249)

	* autogen.sh:
	* operations/generated/other-blend.rb: added
	* operations/generated/svg-12-blend.rb: added
	* operations/generated/svg-12-porter-duff.rb: added
	* operations/generated/svg-blend.rb: deleted
	* operations/generated/porter-duff.rb: deleted

svn path=/trunk/; revision=1628