don't assume that the LDAP server require authentication
don't assume that the LDAP server require authentication

Change-Id: I67f64e6eb19e7a96c0e50f99e57c7fee613df909

cbrucks/Federated_Keystone,promptworks/keystone,nuxeh/keystone,rodrigods/keystone,cloudbau/keystone,rickerc/keystone_audit,dims/keystone,nuxeh/keystone,townbull/keystone-dtrust,savi-dev/keystone,mahak/keystone,cernops/keystone,ging/keystone,ntt-sic/keystone,UTSA-ICS/keystone-kerberos,idjaw/keystone,ilay09/keystone,rushiagr/keystone,reeshupatel/demo,ntt-sic/keystone,idjaw/keystone,jumpstarter-io/keystone,roopali8/keystone,blueboxgroup/keystone,takeshineshiro/keystone,vivekdhayaal/keystone,jonnary/keystone,klmitch/keystone,rajalokan/keystone,citrix-openstack-build/keystone,ilay09/keystone,vivekdhayaal/keystone,citrix-openstack-build/keystone,ajayaa/keystone,cloudbau/keystone,JioCloud/keystone,reeshupatel/demo,himanshu-setia/keystone,cernops/keystone,jumpstarter-io/keystone,dstanek/keystone,JioCloud/keystone,himanshu-setia/keystone,savi-dev/keystone,cbrucks/Federated_Keystone,openstack/keystone,dstanek/keystone,mahak/keystone,klmitch/keystone,jumpstarter-io/keystone,ging/keystone,derekchiang/keystone,MaheshIBM/keystone,townbull/keystone-dtrust,jonnary/keystone,promptworks/keystone,ilay09/keystone,maestro-hybrid-cloud/keystone,rickerc/keystone_audit,dsiddharth/access-keys,kwss/keystone,dsiddharth/access-keys,derekchiang/keystone,openstack/keystone,savi-dev/keystone,mahak/keystone,rushiagr/keystone,rickerc/keystone_audit,rushiagr/keystone,cbrucks/Federated_Keystone,rodrigods/keystone,maestro-hybrid-cloud/keystone,openstack/keystone,MaheshIBM/keystone,dims/keystone,ntt-sic/keystone,blueboxgroup/keystone,reeshupatel/demo,jamielennox/keystone,dsiddharth/access-keys,UTSA-ICS/keystone-kerberos,nuxeh/keystone,dstanek/keystone,rajalokan/keystone,cloudbau/keystone,roopali8/keystone,townbull/keystone-dtrust,ajayaa/keystone,citrix-openstack-build/keystone,rajalokan/keystone,jamielennox/keystone,kwss/keystone,vivekdhayaal/keystone,promptworks/keystone,takeshineshiro/keystone,derekchiang/keystone,kwss/keystone