Made EntityTypeConfigurator code more robust
Made EntityTypeConfigurator code more robust

ogizanagi/EasyAdminBundle,yceruto/EasyAdminBundle,javiereguiluz/EasyAdminBundle,yceruto/EasyAdminBundle,javiereguiluz/EasyAdminBundle,ogizanagi/EasyAdminBundle,OskarStark/EasyAdminBundle,ogizanagi/EasyAdminBundle,OskarStark/EasyAdminBundle,yceruto/EasyAdminBundle,OskarStark/EasyAdminBundle,ogizanagi/EasyAdminBundle