Description of problem:
spacewalk-clone-by-date doesn't work with self-signed certificate.

Version-Release number of selected component (if applicable):
spacewalk-utils-2.4.5-1.fc22.noarch

How reproducible:
always

Steps to Reproduce:
1. use default self-signed certificate

Actual results:
# spacewalk-clone-by-date --assumeyes --channel=custom_chann_rhn_push_tue30jun2015_15_53_37_27695 clone-custom_chann_rhn_push_tue30jun2015_15_53_37_27695 --channel=child_custom_chann_rhn_push_tue30jun2015_15_53_37_27695 clone-child_custom_chann_rhn_push_tue30jun2015_15_53_37_27695 --username <name> --password <pass> --to_date=2030-03-06 

Traceback (most recent call last):
  File "/usr/bin/spacewalk-clone-by-date", line 419, in <module>
    sys.exit(abs(main() or 0))
  File "/usr/bin/spacewalk-clone-by-date", line 409, in main
    return cloneByDate.main(args)
  File "/usr/share/rhn/utils/cloneByDate.py", line 123, in main
    xmlrpc = RemoteApi(options.server, options.username, options.password)
  File "/usr/share/rhn/utils/cloneByDate.py", line 800, in __init__
    self.__login()
  File "/usr/share/rhn/utils/cloneByDate.py", line 813, in __login
    self.auth_token = self.client.auth.login(self.username, self.password)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1240, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1599, in __request
    verbose=self.__verbose
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1280, in request
    return self.single_request(host, handler, request_body, verbose)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1308, in single_request
    self.send_content(h, request_body)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1456, in send_content
    connection.endheaders(request_body)
  File "/usr/lib64/python2.7/httplib.py", line 1049, in endheaders
    self._send_output(message_body)
  File "/usr/lib64/python2.7/httplib.py", line 893, in _send_output
    self.send(msg)
  File "/usr/lib64/python2.7/httplib.py", line 855, in send
    self.connect()
  File "/usr/lib64/python2.7/httplib.py", line 1274, in connect
    server_hostname=server_hostname)
  File "/usr/lib64/python2.7/ssl.py", line 352, in wrap_socket
    _context=self)
  File "/usr/lib64/python2.7/ssl.py", line 579, in __init__
    self.do_handshake()
  File "/usr/lib64/python2.7/ssl.py", line 808, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)

Expected results:
without error and it works correct