Point _validate_required_fields to the subdocument, relates to #111
Point _validate_required_fields to the subdocument, relates to #111

pyeve/cerberus,calve/cerberus,calve/cerberus,funkyfuture/cerberus,dkellner/cerberus,funkyfuture/cerberus,dkellner/cerberus,nicolaiarocci/cerberus,MacHu-GWU/cerberus-sanhe,MacHu-GWU/cerberus-sanhe,nicolaiarocci/cerberus,pyeve/cerberus