Added delete feature for nodes.

server/router.js

@@ -5,6 +5,7 @@ angular.module('ffffng').factory('Router', function (app, NodeResource) {
         init: function () {
             app.post('/api/node', NodeResource.create);
             app.put('/api/node/:token', NodeResource.update);
+            app.delete('/api/node/:token', NodeResource.delete);
             app.get('/api/node/:token', NodeResource.get);
         }
     };