is there a current user? => signed_in? method
changing layout links for signed in user, add dropdown Account with Profile, Settings, Sign out
* add test to see if signed up user gets signed in directly
* implement signin upon signup by adding sign_in method to UsersController#create
* all tests pass
add test for sign out functionality
* add sign_out method in SessionsHelper
* call sign_out in controller and redirect to root
* all tests pass
fix order of tests which caused tests in ln 37-40 to fail
refactor form_for into form_tag form helper. All tests pass.
add custom matchers for valid sign in and error messages
refactor tests to make more readable by including custom matchers
Merge pull request #17 from danbender/signin1

Signin1