build host running with authentication

    >>> from xmlrpclib import ServerProxy
    >>> url = "http://localhost:9999"
    >>> s = ServerProxy(url)
    >>> status, resource = s.build('relman_test', 'relman_test', 'template', '', '', '', '', True)
    >>> status
    True
    >>> status, resource = s.build('relman_testFALSE', 'relman_testFALSE', 'template', '', '', '', '', True)
    >>> status
    False
    >>>
