Add modified gruntfile.js and tasks

tasks/options/less.js

@@ -0,0 +1,20 @@
+// less
+module.exports = function(config) {
+    return {
+        dev: {
+            files: [{
+                expand: true,
+                cwd: 'assets/styles/',
+                src: ['*.less'],
+                dest: '.tmp/public/styles/',
+                ext: '.css'
+            }, {
+                expand: true,
+                cwd: 'assets/linker/styles/',
+                src: ['*.less'],
+                dest: '.tmp/public/linker/styles/',
+                ext: '.css'
+            }]
+        }
+    };
+};