added home and session controllers; added check_in method for event controller; updated check_in method in model; added routes; and added gems
Merge branch 'pr/3' into controllersMergeViews
added routes for login and home; incorporated jquery and bootstrap in layout
Merge pull request #12 from sdford/viewsMergeControllers

Added routes, and new controllers for sessions and home
fix in application layout
Some dashboard and login work