Add modified gruntfile.js and tasks

tasks/options/uglify.js

@@ -0,0 +1,9 @@
+// uglify
+module.exports = function(config) {
+    return {
+        dist: {
+            src: ['.tmp/public/concat/production.js'],
+            dest: '.tmp/public/min/production.js'
+        }
+    };
+};