title: Getting the Username of user from Pointer (Parse.com)
body: <p>I have a class called "Chat" and one of the columns is a pointer to the user that has created the object. How do I get that user's username value in a query?
  I need the query to retrieve objects from the "Chat" class and add them to an array and instead of adding the user id, I would like it to add the username.
  Any suggestions?
  Thanks</p>