changed redirect to users for root to in routes, added stylesheet and made short homepage
added in new form the value of 1 for the party_size automatically
added current_user must be signed in to make a reservation
added admin link if signed_in as admin to show on navigation
made users unaccessable to admin privledges and to see /users if they arent admin
Merge pull request #35 from darrenwong916/User_views

User views