Initial commit for logins feature. Added routes, controller, and initial views
Added :only option for logins routes. Modified home page: removed <p> tag embedded in title string and added NONE when no user session running.
Implemented login functionality.  Displays welcome message on dashboard.  Need to determine whether or not to go straight to the dashboard if already logged in or reset log in each time application is started.
Now navigates to dashboard from new and edit user pages.
On home page, changed SIGN IN link to a Dashboard link if user is already logged into a session. Also changed current_user helper method in application controller to public instead of private.
Merge branch 'master' into implement_logins
Merge branch 'master' of github.com:nivram80/the-nag