We don't need to call create all of the time, we only need ::instance
We don't need to call create all of the time, we only need ::instance

Also add public delete methods until we fix #97 - This is because we
are calling ::create on the factory types instead of instance when
needed

localheinz/factory-muffin,crusepartnership/factory-muffin,thephpleague/factory-muffin