• User can switch between Timeline and Mention views using tabs.
• User can view their home timeline tweets.
• User can view the recent mentions of their username.
• User can navigate to view their own profile
• User can see picture, tagline, # of followers, # of following, and tweets on their profile.
• User can click on the profile image in any tweet to see another user's profile.
• User can see picture, tagline, # of followers, # of following, and tweets of clicked user. Profile view should include that user's timeline
• User can infinitely paginate any of these timelines (home, mentions, user) by scrolling to the bottom

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