Fix most of the broken tests in oldIE. Build order issue.

- attr requires val for attaching to the nodeHook as a valHook for buttons

src/attributes.js

@@ -1,6 +1,6 @@
 define([
+	"./attributes/val",
 	"./attributes/attr",
 	"./attributes/prop",
-	"./attributes/classes",
-	"./attributes/val"
+	"./attributes/classes"
 ]);

src/attributes/attr.js

@@ -2,6 +2,7 @@ define([
 	"../core",
 	"../var/rnotwhite",
 	"../var/strundefined",
+	"./val",
 	"../selector",
 	"../support"
 ], function( jQuery, rnotwhite, strundefined ) {