validation.go

// I would like to see somthing like this
limit, err := validate.Int(r, "limit").Max(1000).Min(0).Default(1000).Value()
if err != nil {
	return nil, err
}

// Over this
limit, err := scroll.GetIntField(r, "limit")
if err != nil {
	if (err != scroll.MissingFieldError{"limit"}) {
		return nil, scroll.GenericAPIError{Reason: "'limit' parameter is not an integer"}
	}
	limit = 1000
}
if limit < 0 || limit > 1000 {
	limit = 1000
}

// Thoughts?