Updated LogEvent demo

Author: auser

.gitignore

@@ -43,3 +43,4 @@ Releases/
 ios/Pods
 config/development.ios.js
 config/development.js
+coverage/

app/views/Analytics/Demos/LogEvent.js

@@ -15,7 +15,7 @@ export class LogEvent extends React.Component {
  firestack.analytics.logEventWithName('simpleEvent', {
  createdAt: new Date().getTime(),
  from: 'FirestackApp'
- })
+ }).then(() => console.log('event logged'));
  }
 
  render() {