added check to see if user has already checked in..if so then message is displayed telling them so
flash message for successful checkin now working
removed console logs and completed TODOS
location object is now passed into checkin page
Merge branch 'richmond-dev' into nathan-dev

Conflicts:
	app/routes/users.js
	app/views/users/index.jade
- routes/users - kept checkIn confirmation flash message, removed old 'index' code. reference
this commit for correct index rendering
- views/users/index - same here. reference this for correct changes