rethink.go
func (s RethinkStore) Since(id string, count, skip int, store string) (rrows ObjectRows, err error) {
	result, err := r.DB(s.Database).Table(store).Filter(r.Row.Field("id").Gt(id)).Limit(count).Skip(skip).Run(s.Session)
	if err != nil {
		return
	}
	//	result.All(dst)
	rrows = RethinkRows{result}
	return
}
func (s RethinkStore) Since(id string, count, skip int, store string) (rrows ObjectRows, err error) {
	result, err := r.DB(s.Database).Table(store).Filter(r.Row.Field("id").Gt(id)).Limit(count).Skip(skip).Run(s.Session)
	if err != nil {
		return
	}
	//	result.All(dst)
	rrows = RethinkRows{result}
	return
}
//This will retrieve all new rows that were created since the row with id was created
// [1, 2, 3, 4], since 2 will return [1]