Create migration to add column starts at, location and duration: db/migrate/20130606063933_add_columns_events.rb

Update factory and add some test for new fields
spec/factories/events.rb
spec/features/events_spec.rb
Added attr_accessor for new fields
app/models/event.rb

updated form and show age to display new field. Added placeholders
app/views/events/_form.html.erb
app/views/events/show.html.erb