virsh: add the volume commands to the virsh man page
virsh: add the volume commands to the virsh man page

This patch also includes the new vol-pool command.

rbu/libvirt,warewolf/libvirt,amery/libvirt-vserver,iam-TJ/libvirt,jeckersb/libvirt,olafhering/libvirt,eskultety/libvirt,emaste/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,libvirt/libvirt,VenkatDatta/libvirt,datto/libvirt,fabianfreyer/libvirt,zhlcindy/libvirt-1.1.4-maintain,bjzhang/libvirt,andreabolognani/libvirt,elmarco/libvirt,rbu/libvirt,andreabolognani/libvirt,foomango/libvirt,libvirt/libvirt,foomango/libvirt,iam-TJ/libvirt,eskultety/libvirt,cbosdo/libvirt,datto/libvirt,jfehlig/libvirt,soulxu/libvirt-xuhj,shugaoye/libvirt,wiedi/libvirt,novel/fbsd-libvirt,jardasgit/libvirt,nertpinx/libvirt,siboulet/libvirt-openvz,usc-isi/libvirt,siboulet/libvirt-openvz,nertpinx/libvirt,shugaoye/libvirt,jardasgit/libvirt,agx/libvirt,jardasgit/libvirt,iam-TJ/libvirt,foomango/libvirt,dumbbell/libvirt,andreabolognani/libvirt,jeckersb/libvirt,rmarwaha/libvirt,kantai/libvirt-vfork,danwent/libvirt-ovs,bjzhang/libvirt,jeckersb/libvirt,novel/fbsd-libvirt,trainstack/libvirt,bjzhang/libvirt,rmarwaha/libvirt,kantai/libvirt-vfork,foomango/libvirt,emaste/libvirt,rmarwaha/libvirt1,rlaager/libvirt,cbosdo/libvirt,taget/libvirt,cbosdo/libvirt,leilihh/libvirt,zippy2/libvirt,dumbbell/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,cbosdo/libvirt,leilihh/libvirt,warewolf/libvirt,rlaager/libvirt,danwent/libvirt-ovs,kantai/libvirt-vfork,rmarwaha/libvirt,jardasgit/libvirt,leilihh/libvirt,libvirt/libvirt,leilihh/libvirt,fabianfreyer/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,rmarwaha/libvirt,jfehlig/libvirt,jeckersb/libvirt,trainstack/libvirt,datto/libvirt,amery/libvirt-vserver,novel/fbsd-libvirt,jeckersb/libvirt,emaste/libvirt,foomango/libvirt,rmarwaha/libvirt1,crobinso/libvirt,iam-TJ/libvirt,amery/libvirt-vserver,nertpinx/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,wiedi/libvirt,rmarwaha/libvirt,soulxu/libvirt-xuhj,warewolf/libvirt,rlaager/libvirt,crobinso/libvirt,amery/libvirt-vserver,warewolf/libvirt,iam-TJ/libvirt,rbu/libvirt,datto/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,rlaager/libvirt,dumbbell/libvirt,kantai/libvirt-vfork,crobinso/libvirt,novel/fbsd-libvirt,danwent/libvirt-ovs,nertpinx/libvirt,siboulet/libvirt-openvz,trainstack/libvirt,leilihh/libvirt,emaste/libvirt,bjzhang/libvirt,olafhering/libvirt,wiedi/libvirt,libvirt/libvirt,warewolf/libvirt,zhlcindy/libvirt-1.1.4-maintain,wiedi/libvirt,eskultety/libvirt,rmarwaha/libvirt1,olafhering/libvirt,zippy2/libvirt,jeckersb/libvirt,kantai/libvirt-vfork,rbu/libvirt,agx/libvirt,taget/libvirt,trainstack/libvirt,taget/libvirt,elmarco/libvirt,eskultety/libvirt,fabianfreyer/libvirt,usc-isi/libvirt,elmarco/libvirt,wiedi/libvirt,dumbbell/libvirt,elmarco/libvirt,usc-isi/libvirt,shugaoye/libvirt,zhlcindy/libvirt-1.1.4-maintain,datto/libvirt,taget/libvirt,VenkatDatta/libvirt,usc-isi/libvirt,iam-TJ/libvirt,leilihh/libvirt,danwent/libvirt-ovs,elmarco/libvirt,amery/libvirt-vserver,nertpinx/libvirt,rmarwaha/libvirt1,siboulet/libvirt-openvz,shugaoye/libvirt,jfehlig/libvirt,novel/fbsd-libvirt,zippy2/libvirt,novel/fbsd-libvirt,rbu/libvirt,dumbbell/libvirt,bjzhang/libvirt,crobinso/libvirt,emaste/libvirt,danwent/libvirt-ovs,andreabolognani/libvirt,cbosdo/libvirt,soulxu/libvirt-xuhj,jardasgit/libvirt,emaste/libvirt,wiedi/libvirt,warewolf/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,andreabolognani/libvirt,siboulet/libvirt-openvz,trainstack/libvirt,novel/fbsd-libvirt,zhlcindy/libvirt-1.1.4-maintain,wiedi/libvirt,zippy2/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,dumbbell/libvirt,trainstack/libvirt,fabianfreyer/libvirt,iam-TJ/libvirt,warewolf/libvirt,soulxu/libvirt-xuhj,soulxu/libvirt-xuhj,jeckersb/libvirt,shugaoye/libvirt,olafhering/libvirt,VenkatDatta/libvirt,taget/libvirt,trainstack/libvirt,agx/libvirt,emaste/libvirt,novel/fbsd-libvirt,rmarwaha/libvirt1,zhlcindy/libvirt-1.1.4-maintain,novel/fbsd-libvirt,rmarwaha/libvirt1,rlaager/libvirt,rmarwaha/libvirt,agx/libvirt,eskultety/libvirt,agx/libvirt,usc-isi/libvirt