Delete the CF stack managed by Zappa.

def delete_stack(self, name, wait=False):
        """
        Delete the CF stack managed by Zappa.
        """
        try:
            stack = self.cf_client.describe_stacks(StackName=name)['Stacks'][0]
        except: # pragma: no cover
            print('No Zappa stack named {0}'.format(name))
            return False

        tags = {x['Key']:x['Value'] for x in stack['Tags']}
        if tags.get('ZappaProject') == name:
            self.cf_client.delete_stack(StackName=name)
            if wait:
                waiter = self.cf_client.get_waiter('stack_delete_complete')
                print('Waiting for stack {0} to be deleted..'.format(name))
                waiter.wait(StackName=name)
            return True
        else:
            print('ZappaProject tag not found on {0}, doing nothing'.format(name))
            return False