Initial Commit of the code with most required features.

User can sign in to Twitter using OAuth login
User can view the tweets from their home timeline
User should be displayed the username, name, and body for each tweet
User should be displayed the relative timestamp for each tweet "8m",
"7h"
User can view more tweets as they scroll with infinite pagination
Optional: Links in tweets are clickable and will launch the web browser
User can compose a new tweet
User can click a “Compose” icon in the Action Bar on the top right
User can then enter a new tweet and post this to twitter
User is taken back to home timeline with new tweet visible in timeline

Advanced: User can refresh tweets timeline by pulling down to refresh
(i.e pull-to-refresh)