add r.js demo

demo/r.js/build.js

@@ -0,0 +1,20 @@
+({
+    optimize: "none",
+    preserveLicenseComments: false,
+    name: "node_modules/almond/almond",
+    baseUrl: "../../",
+    paths: {
+        ace : "lib/ace",
+        demo: "demo/kitchen-sink"        
+    },
+    packages: [
+    ],
+    include: [
+        "ace/ace"
+    ],
+    exclude: [
+    ],
+    out: "./packed.js",
+    useStrict: true,
+    wrap: false
+})