Add UID, GID and e-mail to the user default attributes.

ticket https://fedorahosted.org/freeipa/ticket/1265

tests/test_xmlrpc/test_krbtpolicy.py

@@ -101,6 +101,7 @@ class test_krbtpolicy(Declarative):
                     sn=[u'User1'],
                     uid=[user1],
                     uidnumber=[fuzzy_digits],
+                    gidnumber=[fuzzy_digits],
                     displayname=[u'Test User1'],
                     cn=[u'Test User1'],
                     initials=[u'TU'],