Adding Rack Middleware to replace all @username mentions with links to the user profile
Adding profile page by limiting the Tweets displayed via Tweets#index when a username is passed.
Adding follow / unfollow link to the profile pages.
Small middleware refactor
Refactoring TweetsController#get_tweets to use the same underlying scope method when finding Tweets by user
Merge branch 'master' into profile
Adding / updating documentation
Merge 'master' into profile
Updating language to Twetter and Twet
added gravatars
Merge branch 'myGravatar'