(a) created new material types for food choice, bus options, and levels, (b) reassigned materials to the new types as opposed to Other, (c) created dynfield widgets for said material types plus Accomodation (mispelled), which existed already, (d) modified sql to add accommodation, food_choice, and bus_options as columns to the im_event_participants table. --- Note that we still need to create a widget, assign materials, and have a column for the Levels material type. We did not have to modify the registration form in register.tcl, which already appends dynfield attributes to the form.