User can sign in using OAuth login flow
User can view last 25 tweets from their home timeline
User should be able to see the user, body and timestamp for tweet
User can compose a new tweet
User can click a “Compose” icon in the Action Bar on the top right
User will have a Compose view opened
User can enter a message and hit a button to Post
User should be taken back to home timeline with new tweet visible
Optional: User can see a counter with total number of characters left
for tweet
Optional: User can refresh timeline by pulling down (i.e
pull-to-refresh)