Fix subclasses of create line items promotion actions
Fix subclasses of create line items promotion actions

imella/spree,DarkoP/spree,ayb/spree,ayb/spree,dafontaine/spree,siddharth28/spree,dafontaine/spree,dafontaine/spree,brchristian/spree,imella/spree,vinayvinsol/spree,calvinl/spree,vinsol/spree,brchristian/spree,vinayvinsol/spree,brchristian/spree,vinsol/spree,calvinl/spree,vinsol/spree,ayb/spree,ayb/spree,calvinl/spree,DarkoP/spree,vinsol/spree,calvinl/spree,vinayvinsol/spree,vinayvinsol/spree,imella/spree,DarkoP/spree,brchristian/spree,dafontaine/spree,siddharth28/spree,siddharth28/spree,siddharth28/spree,DarkoP/spree