Merge branch 'hotfix/0.1.3'

Author: webus

package.json

@@ -1,6 +1,6 @@
 {
   "name": "botstack",
-  "version": "0.1.2",
+  "version": "0.1.3",
   "description": "Bot Stack",
   "main": "index.js",
   "scripts": {

src/fb/message_types.js

@@ -10,7 +10,7 @@ function structuredMessage(message) {
         buttons.push({
           type: 'web_url',
           title: button.text,
-          payload: button.postback
+          url: button.postback
         });
       } else {
         buttons.push({

tests/test_fb.js

@@ -147,7 +147,7 @@ describe('Testing FB', () => {
     assert.equal(lodash.get(data, '[0].attachment.payload.elements[0].buttons', []).length, 3);
     assert.equal(lodash.get(data, '[0].attachment.payload.elements[0].buttons[0].type'), 'web_url');
     assert.equal(lodash.get(data, '[0].attachment.payload.elements[0].buttons[0].title'), 'Button 1');
-    assert.equal(lodash.get(data, '[0].attachment.payload.elements[0].buttons[0].payload'), 'http://example.com/button.jpg');
+    assert.equal(lodash.get(data, '[0].attachment.payload.elements[0].buttons[0].url'), 'http://example.com/button.jpg');
   });
 
   it('Testing quick replies message (type = 2)', async () => {