Improvements/corrections to vnc docs.
Improvements/corrections to vnc docs.

 * Fixes bug 959929

Change-Id: Ieb8234a3b9e432ae39d33d89b24a8148a01454e3

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