Add goWait nav action

Author: tanx

src/action/nav.js

@@ -31,6 +31,10 @@ class NavAction {
     this._store.route = 'NewAddress';
   }
 
+  goWait() {
+    this._store.route = 'Wait';
+  }
+
   goHome() {
     this._store.route = 'Home';
   }

test/unit/action/nav.spec.js

@@ -67,6 +67,13 @@ describe('Action Nav Unit Tests', () => {
     });
   });
 
+  describe('goWait()', () => {
+    it('should set correct route', () => {
+      nav.goWait();
+      expect(store.route, 'to equal', 'Wait');
+    });
+  });
+
   describe('goHome()', () => {
     it('should set correct route', () => {
       nav.goHome();