update UI in response to posting a new tweet
update user interface
remove new.js.erb from project
add methods to User model to retrieve tweets in timeline format (sorted date/time)
add any_tweets? method to User model, returns if there are any tweets at all to view, from eternity
refactor any_tweets? in User model
implement viewing of all tweets by self and those self is following
refresh timeline when user submits new tweet
rename /user_root to /timeline because nicer
make flash messages red so the user can actually read them
add bootstrap styling to forms