Add 'Share' text to the share button

* Also bumped pod version to 1.4.9.

https://app.asana.com/0/21826111570917/21826111570957

![screen shot 2014-12-10 at 09 57 28](https://cloud.githubusercontent.com/assets/4643064/5373960/fe8f0f22-8052-11e4-800a-0e44d27a7f00.png)