Updated python module for CDS from pulp.cds to pulp_cds.cds
  Avoids conflict with pulp's own module
Fix: "sslv3 alert unexpected message"  Change wsgi config from:
 SSLVerifyClient none to "SSLVerifyClient optional"
 Prior to this on server we saw messages like:  (103)Software caused connection abort: mod_wsgi (pid=9429): Unable to get bucket brigade for request.