added routing
added .htaccess
updated README with htaccess info
added signin form
added signin acceptance test
added signin into home
added signout
added acceptance test for visiting home without signing in
redirected to signin if you visit home without signing in
refactored signin form to controller
refactored signin to controller
refactored home to controller
refactored signout to controller
removed former functions and cleaned up a bit
redirected to home if signin is tried again
refactored out checking if user is signed in
Merge pull request #1 from caninemwenja/user-session

User session management