added a spot for 'cc' for whenever we implement CC on the Web API
added a spot for 'cc' for whenever we implement CC on the Web API

Khan/sendgrid-python,galihmelon/sendgrid-python,Khan/sendgrid-python,gabrielkrell/sendgrid-python,gabrielkrell/sendgrid-python,sendgrid/sendgrid-python,thinkingserious/sendgrid-python,blackpioter/sendgrid-python,thinkingserious/sendgrid-python,gabrielkrell/sendgrid-python,sendgrid/sendgrid-python,sendgrid/sendgrid-python,galihmelon/sendgrid-python,blackpioter/sendgrid-python,galihmelon/sendgrid-python,blackpioter/sendgrid-python