fix filename in Gruntfile.js

Gruntfile.js

@@ -65,7 +65,7 @@ module.exports = function (grunt) {
         }
       },
       client: {
-        src: ['schema.gadget.js',
+        src: ['jsonform.gadget.js',
               'jsonform/gadget_json_generated_form_child.js',
               'demo/gadget_demo_json_schema_form.js'],
         directives: {