Refactor machine_learner_spec.rb
Designate "private" methods in twitter_api.rb
Delete unused 'privacy' and 'about' pages
Modify syntax in tweet_updater.rb
Shift methods in emotion_getter.rb to follower.rb and user.rb
Refactor twitter_api.rb
Refactor emotion_getter.rb
Create unit specs for tweet_creator.rb
Create tweet_creator.rb
Refactor user_views_default_dashboard_spec.rb
Refactor user_spec.rb and follower_spec.rb to accomodate changes in tweet_creator.rb