Import SwiftyJSON
Add Tweet and User model class.
Add function to generate HTTPBody data for POST request
Added a param in the callback block to indicate if the Authentication is successful
remove refresh() function, just set the UI in viewDidLoad
Download Timeline after successfully authenticating
Add alertview with textfield to Tweet
these dont have to be a variable
Add getUserTimeLine API
add new param to this function, default it to nil
generate HTTPBody data for POST request
add new api to post Tweet