IES profile support and fixed numerous editor crashes.

neo/engine/renderer/Material.h

@@ -764,6 +764,7 @@ public:
 
 	// NULL unless an image is explicitly specified in the shader with "lightFalloffShader <image>"
 	idImage* LightFalloffImage() const { return lightFalloffImage; }
+	idImage* LightIESImage() const { return lightIESImage; }
 
 	//------------------------------------------------------------------
 
@@ -927,6 +928,7 @@ private:
 	idStr				renderBump;			// renderbump command options, without the "renderbump" at the start
 
 	idImage* lightFalloffImage;
+	idImage* lightIESImage;
 
 	int					entityGui;			// draw a gui with the idUserInterface from the renderEntity_t
 	// non zero will draw gui, gui2, or gui3 from renderEnitty_t