Cycles / Toon BSDF:

* Added a toon bsdf node to Cycles. This was already available as OSL only closure, but is now available inside the SVM backed as well, for CPU and GPU rendering. 
* There are 2 variations available, diffuse and glossy toon, selectable via a menu inside the node. 

Documentation:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Shaders#Toon

Example render & blend file:
http://www.pasteall.org/pic/show.php?id=51970
http://www.pasteall.org/blend/21579

intern/cycles/render/nodes.h

@@ -259,6 +259,14 @@ public:
 	static ShaderEnum distribution_enum;
 };
 
+class ToonBsdfNode : public BsdfNode {
+public:
+	SHADER_NODE_CLASS(ToonBsdfNode)
+
+	ustring component;
+	static ShaderEnum component_enum;
+};
+
 class SubsurfaceScatteringNode : public BsdfNode {
 public:
 	SHADER_NODE_CLASS(SubsurfaceScatteringNode)