title: Google Cloud Messaging for Android Library not Found in the sdk Manager
body: <p>I am trying to implement a push notification solution for android.I am following the steps given in the following tutorial <a href="http://www.androidhive.info/2012/10/android-push-notifications-using-google-cloud-messaging-gcm-php-and-mysql/" rel="noreferrer">http://www.androidhive.info/2012/10/android-push-notifications-using-google-cloud-messaging-gcm-php-and-mysql/</a></p>
  
  <p>but when i tried to install the Google Cloud Messaging for Android Library using the android sdk(i am using the latest sdk) i don't find it the extras module like you can see in this picture</p>
  
  <p><img src="https://i.stack.imgur.com/qj8qi.png" alt="enter image description here"> </p>
  
  <p>This is really strange.
  Is there any solution?</p>