added links to log in, log out and sign up with conditional statement
removed table name "event" for more descriptive one "event_name". Added new event form to events new view
added event index page for for loop
added validation for event name,  description, event datetime, name. added event's info on event show page
fixed login and log out links
added ensure logged in. works but has an error when you try to bypass. still sorting out.
fixed error issue. also added exception