code out basic users controller actions
add extra user fields to registration new and edit forms
Fix devise actions
* add login and sign up links to home page if not logged in
* add sign out link to home page if logged in
* require authentication to access user index/show pages
add table with list of users to user index page
fix more devise issues with user registrations
add authentication requirement to posts and comments controllers
Merge pull request #24 from vidkun/ryan/users_controller

Build out users controller and devise

Merged.