demo: Disable normal crease protection by default

In permissive mode we no longer need this as the simplifier will
correctly trace the hard edges by itself. We still keep the option for
testing just in case, but it's no longer preferred and isn't the
default.

Author: zeux

demo/simplify.html

@@ -155,7 +155,7 @@
 				debugOverlay: false,
 				sloppy: false,
 				permissive: false,
-				permissiveProtection: 3,
+				permissiveProtection: 2, // uvs
 				lockBorder: false,
 				preprune: 0.0,
 				prune: true,
@@ -207,7 +207,7 @@
 			guiSimplify.add(settings, 'ratio', 0, 1, 0.01).onChange(simplify);
 			guiSimplify.add(settings, 'sloppy').onChange(simplify);
 			guiSimplify.add(settings, 'permissive').onChange(simplify);
-			guiSimplify.add(settings, 'permissiveProtection', { none: 0, normals: 1, uvs: 2, all: 3 }).onChange(simplify);
+			guiSimplify.add(settings, 'permissiveProtection', { none: 0, uvs: 2, normals: 1, all: 3 }).onChange(simplify);
 			guiSimplify.add(settings, 'lockBorder').onChange(simplify);
 			guiSimplify.add(settings, 'prune').onChange(simplify);
 			guiSimplify.add(settings, 'regularize').onChange(simplify);