Added 'config list' to nova-manage. This function will output all of the flags and their values.
Added 'config list' to nova-manage. This function will output all of the flags and their values.

# ./bin/nova-manage config list
--storage_availability_zone=nova
--ca_file=cacert.pem
--ec2_dmz_host=$my_ip
--fixed_range=10.0.0.0/8
--compute_topic=compute
--dmz_mask=255.255.255.0
****SNIP****

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