'Send a single message to an Address
@param recipient: "email@address", "+4412345678", "@nick"
@param message: message body
@param subject: message subject (Email only)'

@staticmethod
def send(recipient, message, subject=None):

    if recipient.startswith('@'):
        tablename = 'msg_twitter'
    elif ('@' in recipient):
        tablename = 'msg_email'
    else:
        tablename = 'msg_sms'
