remove NSObject protocol requirement from EKMappingProtocol
remove NSObject protocol requirement from EKMappingProtocol

keslcod/EasyMapping,maximgolunov/EasyMapping,lucasmedeirosleite/EasyMapping,maximgolunov/EasyMapping,jazzz13/EasyMapping,ChronicStim/EasyMapping,lucasmedeirosleite/EasyMapping,ChronicStim/EasyMapping,PodsMakleso6/EasyMapping,keslcod/EasyMapping,ChronicStim/EasyMapping,jazzz13/EasyMapping,PodsMakleso6/EasyMapping