Add (very basic & ugly) user profile page, with default route.
Tweak to routes for user#show.
Add user's twets to their profile page (styled the same way as the Twets page).
Change function name for getting all current twets because it was the same as the Twet class and was causing issues.
Initial regex to match on @mentions.
Changed routes to work properly for /username.
Initial try at links to profiles from @mentions in twets.
Add a couple of different methods to making @ mentions, for review with my mentor.
Add users_helper.rb
(Finally) making my /username routes work the way they should.
Fix up my current @username links a bit.
Mentions are linked from twets/index and users/show.
Minor code style changes.
Generalize format_mentions so it takes a string instead of a twet for wider reusability.
Remove old version of format_mentions