gistfile1.js

//app.js
angular.module('app', ['ngNewRouter', 'app.home', 'app.detail', 'app.session'])
.controller('AppController', ['$router', AppController]);

AppController.$routeConfig = [
                { path: '/', component: 'home' },
                { path: '/session', component: 'session' },
                { path: '/detail/:id', component: 'detail' }
        ];

function AppController ($router) {}

//components/session/session.js
angular.module('app.session', ['ngNewRouter', 'app.notes'])
.controller('SessionController', ['$router', SessionController]);

SessionController.$routeConfig = [
                        { path: '/notes', component: 'notes' }
                      ];


function SessionController ($router) {}