Changing DN creation to do searches for entries.
Changing DN creation to do searches for entries.

This change adds additional interoperability (as many directory servers and LDAP admins use cn, or another attribute, as the naming attribute). DN creation will incur a slight performance penalty for doing so, as DNs must be searched for now. User and project creation skip this performance penalty, as there is no need to search for an entry that is being created.

bigswitch/nova,anotherjesse/nova,paulmathews/nova,petrutlucian94/nova,dims/nova,eharney/nova,projectcalico/calico-nova,usc-isi/extra-specs,jianghuaw/nova,devendermishrajio/nova,termie/nova-migration-demo,qwefi/nova,jianghuaw/nova,rahulunair/nova,klmitch/nova,salv-orlando/MyRepo,tealover/nova,leilihh/nova,tanglei528/nova,felixma/nova,Yuriy-Leonov/nova,DirectXMan12/nova-hacking,maoy/zknova,zhimin711/nova,vmturbo/nova,leilihh/nova,petrutlucian94/nova_dev,gspilio/nova,Stavitsky/nova,petrutlucian94/nova,luogangyi/bcec-nova,tudorvio/nova,sileht/deb-openstack-nova,houshengbo/nova_vmware_compute_driver,ewindisch/nova,scripnichenko/nova,savi-dev/nova,yrobla/nova,apporc/nova,orbitfp7/nova,Triv90/Nova,adelina-t/nova,Tehsmash/nova,jianghuaw/nova,ewindisch/nova,qwefi/nova,takeshineshiro/nova,salv-orlando/MyRepo,belmiromoreira/nova,usc-isi/nova,eneabio/nova,saleemjaveds/https-github.com-openstack-nova,alaski/nova,tangfeixiong/nova,varunarya10/nova_test_latest,NeCTAR-RC/nova,watonyweng/nova,apporc/nova,alexandrucoman/vbox-nova-driver,gooddata/openstack-nova,zzicewind/nova,mandeepdhami/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,Juniper/nova,ruslanloman/nova,mgagne/nova,zaina/nova,vmturbo/nova,MountainWei/nova,blueboxgroup/nova,petrutlucian94/nova_dev,nikesh-mahalka/nova,termie/nova-migration-demo,noironetworks/nova,phenoxim/nova,NoBodyCam/TftpPxeBootBareMetal,cernops/nova,KarimAllah/nova,mikalstill/nova,fajoy/nova,Francis-Liu/animated-broccoli,sridevikoushik31/nova,affo/nova,angdraug/nova,CEG-FYP-OpenStack/scheduler,zhimin711/nova,josephsuh/extra-specs,Stavitsky/nova,devoid/nova,yatinkumbhare/openstack-nova,JioCloud/nova_test_latest,raildo/nova,takeshineshiro/nova,cloudbase/nova-virtualbox,berrange/nova,bclau/nova,tianweizhang/nova,bclau/nova,usc-isi/extra-specs,OpenAcademy-OpenStack/nova-scheduler,openstack/nova,Yuriy-Leonov/nova,TieWei/nova,devendermishrajio/nova_test_latest,superstack/nova,Triv90/Nova,mgagne/nova,dawnpower/nova,mandeepdhami/nova,dims/nova,akash1808/nova_test_latest,klmitch/nova,alvarolopez/nova,vladikr/nova_drafts,sebrandon1/nova,paulmathews/nova,sacharya/nova,openstack/nova,cloudbau/nova,sridevikoushik31/nova,eneabio/nova,sacharya/nova,alvarolopez/nova,silenceli/nova,rajalokan/nova,termie/nova-migration-demo,badock/nova,joker946/nova,fajoy/nova,tianweizhang/nova,SUSE-Cloud/nova,sebrandon1/nova,rickerc/nova_audit,sileht/deb-openstack-nova,NewpTone/stacklab-nova,akash1808/nova,raildo/nova,fnordahl/nova,bigswitch/nova,plumgrid/plumgrid-nova,CEG-FYP-OpenStack/scheduler,vmturbo/nova,eayunstack/nova,virtualopensystems/nova,eharney/nova,adelina-t/nova,double12gzh/nova,termie/pupa,sileht/deb-openstack-nova,bgxavier/nova,jeffrey4l/nova,cloudbase/nova,watonyweng/nova,klmitch/nova,double12gzh/nova,usc-isi/nova,maoy/zknova,kimjaejoong/nova,sridevikoushik31/openstack,mikalstill/nova,ruslanloman/nova,mmnelemane/nova,cloudbau/nova,orbitfp7/nova,sridevikoushik31/openstack,projectcalico/calico-nova,scripnichenko/nova,devoid/nova,cyx1231st/nova,Juniper/nova,usc-isi/nova,zzicewind/nova,MountainWei/nova,vmturbo/nova,yatinkumbhare/openstack-nova,shail2810/nova,mahak/nova,sridevikoushik31/openstack,affo/nova,shahar-stratoscale/nova,rahulunair/nova,BeyondTheClouds/nova,cernops/nova,plumgrid/plumgrid-nova,paulmathews/nova,josephsuh/extra-specs,jeffrey4l/nova,Yusuke1987/openstack_template,varunarya10/nova_test_latest,maoy/zknova,tudorvio/nova,KarimAllah/nova,rahulunair/nova,rajalokan/nova,dstroppa/openstack-smartos-nova-grizzly,eayunstack/nova,tanglei528/nova,JioCloud/nova,redhat-openstack/nova,russellb/nova,viggates/nova,mahak/nova,SUSE-Cloud/nova,termie/pupa,hanlind/nova,cloudbase/nova-virtualbox,tealover/nova,CiscoSystems/nova,TieWei/nova,noironetworks/nova,gooddata/openstack-nova,NewpTone/stacklab-nova,BeyondTheClouds/nova,Metaswitch/calico-nova,joker946/nova,iuliat/nova,russellb/nova,Triv90/Nova,leilihh/novaha,aristanetworks/arista-ovs-nova,maheshp/novatest,hanlind/nova,dstroppa/openstack-smartos-nova-grizzly,mikalstill/nova,termie/pupa,j-carpentier/nova,spring-week-topos/nova-week,mahak/nova,rrader/nova-docker-plugin,ted-gould/nova,shahar-stratoscale/nova,shootstar/novatest,shootstar/novatest,savi-dev/nova,nikesh-mahalka/nova,rajalokan/nova,belmiromoreira/nova,devendermishrajio/nova_test_latest,eonpatapon/nova,anotherjesse/nova,josephsuh/extra-specs,alexandrucoman/vbox-nova-driver,cloudbase/nova,gooddata/openstack-nova,ted-gould/nova,badock/nova,thomasem/nova,russellb/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,gspilio/nova,tangfeixiong/nova,Tehsmash/nova,thomasem/nova,NeCTAR-RC/nova,akash1808/nova_test_latest,Juniper/nova,eneabio/nova,mmnelemane/nova,imsplitbit/nova,barnsnake351/nova,citrix-openstack-build/nova,psiwczak/openstack,psiwczak/openstack,vladikr/nova_drafts,whitepages/nova,maheshp/novatest,KarimAllah/nova,cernops/nova,superstack/nova,whitepages/nova,dstroppa/openstack-smartos-nova-grizzly,sebrandon1/nova,zaina/nova,dawnpower/nova,leilihh/novaha,Francis-Liu/animated-broccoli,CiscoSystems/nova,maheshp/novatest,DirectXMan12/nova-hacking,jianghuaw/nova,JioCloud/nova_test_latest,edulramirez/nova,eonpatapon/nova,phenoxim/nova,savi-dev/nova,cyx1231st/nova,bgxavier/nova,sridevikoushik31/nova,Juniper/nova,JianyuWang/nova,LoHChina/nova,j-carpentier/nova,aristanetworks/arista-ovs-nova,ntt-sic/nova,NoBodyCam/TftpPxeBootBareMetal,saleemjaveds/https-github.com-openstack-nova,usc-isi/extra-specs,psiwczak/openstack,anotherjesse/nova,fajoy/nova,rickerc/nova_audit,BeyondTheClouds/nova,yrobla/nova,devendermishrajio/nova,CloudServer/nova,houshengbo/nova_vmware_compute_driver,CloudServer/nova,JianyuWang/nova,luogangyi/bcec-nova,berrange/nova,CCI-MOC/nova,houshengbo/nova_vmware_compute_driver,yosshy/nova,maelnor/nova,silenceli/nova,Metaswitch/calico-nova,sridevikoushik31/nova,DirectXMan12/nova-hacking,gooddata/openstack-nova,virtualopensystems/nova,NoBodyCam/TftpPxeBootBareMetal,klmitch/nova,citrix-openstack-build/nova,edulramirez/nova,kimjaejoong/nova,ntt-sic/nova,hanlind/nova,alaski/nova,yosshy/nova,LoHChina/nova,JioCloud/nova,Yusuke1987/openstack_template,aristanetworks/arista-ovs-nova,redhat-openstack/nova,NewpTone/stacklab-nova,akash1808/nova,CCI-MOC/nova,yrobla/nova,rrader/nova-docker-plugin,felixma/nova,viggates/nova,TwinkleChawla/nova,imsplitbit/nova,barnsnake351/nova,salv-orlando/MyRepo,shail2810/nova,TwinkleChawla/nova,iuliat/nova,maelnor/nova,rajalokan/nova,isyippee/nova,spring-week-topos/nova-week,cloudbase/nova,angdraug/nova,isyippee/nova,fnordahl/nova,openstack/nova,gspilio/nova,blueboxgroup/nova,superstack/nova,OpenAcademy-OpenStack/nova-scheduler