plush.go
func BuffaloRenderer(input string, data map[string]interface{}, helpers map[string]interface{}) (string, error) {
	t, err := Parse(input)
	if err != nil {
		return "", err
	}
	if helpers != nil {
		for k, v := range helpers {
			data[k] = v
		}
	}
	return t.Exec(NewContextWith(data))
}
func BuffaloRenderer(input string, data map[string]interface{}, helpers map[string]interface{}) (string, error) {
	t, err := Parse(input)
	if err != nil {
		return "", err
	}
	if helpers != nil {
		for k, v := range helpers {
			data[k] = v
		}
	}
	return t.Exec(NewContextWith(data))
}
// BuffaloRenderer implements the render.TemplateEngine interface allowing velvet to be used as a template engine
// for Buffalo