circleci.go
func (c *Client) ListRecentBuilds(limit, offset int) ([]*Build, error) {
	return c.recentBuilds("recent-builds", nil, limit, offset)
}
func (c *Client) ListRecentBuilds(limit, offset int) ([]*Build, error) {
	return c.recentBuilds("recent-builds", nil, limit, offset)
}
// ListRecentBuilds fetches the list of recent builds for all repositories the user is watching
// If limit is -1, fetches all builds