remved offering_learner from schema definition, added tables offering_x_learner and offering_x_group instead.
remved offering_learner from schema definition, added tables offering_x_learner and offering_x_group instead.

justinchu17/ilios,justinchu17/ilios,thecoolestguy/ilios,dartajax/ilios,Trott/ilios,Trott/ilios,thecoolestguy/ilios,justinchu17/ilios,dartajax/ilios,stopfstedt/ilios,justinchu17/ilios,ilios/ilios,stopfstedt/ilios,ilios/ilios