Registers a new device + username with the bridge

def connect(self):
        '''
        Registers a new device + username with the bridge
        '''
        # Don't try to register if we already have
        if self.validate_registration():
            return True

        body = {
            'devicetype': self.device_type,
            'username': self.username,
        }
        response = self.make_request('POST', '/api', body)

        if 'error' in response:
            if response['error']['type'] == 101:
                msg = 'Please press the link button and try again'
            else:
                msg = response['error']['description']

            raise Exception(msg)