Word count

Added a word and character count drop down. 

Before: 
(https://cloud.githubusercontent.com/assets/5612080/4039100/c5c7b0aa-2cc3-11e4-8dff-152779088849.png)

After: 
(https://cloud.githubusercontent.com/assets/5612080/4039105/d420f120-2cc3-11e4-931a-46741abe62bc.png)