pushbullet.go
func New(apikey string) *Client {
	endpoint := Endpoint{URL: EndpointURL}
	return &Client{apikey, http.DefaultClient, endpoint}
}
func New(apikey string) *Client {
	endpoint := Endpoint{URL: EndpointURL}
	return &Client{apikey, http.DefaultClient, endpoint}
}
// New creates a new client with your personal API key.