initial app router and some views

src/js/constants/Routes.js

@@ -0,0 +1,19 @@
+var assign = require('object-assign');
+var keyMirror = require('../util/keyMirror');
+
+module.exports = keyMirror({
+  NUX: null,
+  LOADING: null,
+  SEQUENCE_SELECT: null,
+  LEVEL_SELECT: null,
+});
+
+module.exports.getRouteWithParams = function(id, params) {
+  return assign({id: id}, params);
+};
+
+module.exports.getRouteForID = function(id) {
+  return {
+    id: id,
+  };
+};