minor changes to neatly show multiple errors on an attribute
styling, formatting for errors
refactored so that errors are generated initially without inefficient ajax calls for each field
added custom validations to race and start_time datas. changed config in app.rb to disable field_with_errors in views
added after_save callback to update the actual times after start_time_data_save
changed after_save to before_save
added jquery ui datetimepicker for start time data
added jquery ui datetimepicker for start time data