Implementing Countable.js to count words.

Changed the words_count method to work with countable.js

Added the gem for countable.js

app/assets/javascripts/application.js

@@ -45,6 +45,7 @@
 //= require osem-commercials
 //= require unobtrusive_flash
 //= require unobtrusive_flash_bootstrap
+//= require countable
 
 $(document).ready(function() {
     $('a[disabled=disabled]').click(function(event){