client rpc: Send keepalive requests from IO event loop
client rpc: Send keepalive requests from IO event loop

In addition to keepalive responses, we also need to send keepalive
requests from client IO loop to properly detect dead connection in case
a libvirt API is called from the main loop, which prevents any timers to
be called.

novel/fbsd-libvirt,elmarco/libvirt,fabianfreyer/libvirt,iam-TJ/libvirt,dumbbell/libvirt,agx/libvirt,trainstack/libvirt,andreabolognani/libvirt,emaste/libvirt,andreabolognani/libvirt,dumbbell/libvirt,wiedi/libvirt,zippy2/libvirt,VenkatDatta/libvirt,rmarwaha/libvirt1,zhlcindy/libvirt-1.1.4-maintain,emaste/libvirt,elmarco/libvirt,shugaoye/libvirt,libvirt/libvirt,warewolf/libvirt,jardasgit/libvirt,warewolf/libvirt,nertpinx/libvirt,datto/libvirt,siboulet/libvirt-openvz,zippy2/libvirt,andreabolognani/libvirt,elmarco/libvirt,VenkatDatta/libvirt,elmarco/libvirt,emaste/libvirt,olafhering/libvirt,shugaoye/libvirt,siboulet/libvirt-openvz,libvirt/libvirt,fabianfreyer/libvirt,cbosdo/libvirt,jeckersb/libvirt,rmarwaha/libvirt1,rmarwaha/libvirt1,bjzhang/libvirt,novel/fbsd-libvirt,jardasgit/libvirt,olafhering/libvirt,emaste/libvirt,rlaager/libvirt,rmarwaha/libvirt1,novel/fbsd-libvirt,trainstack/libvirt,elmarco/libvirt,rmarwaha/libvirt,crobinso/libvirt,taget/libvirt,jeckersb/libvirt,rmarwaha/libvirt,wiedi/libvirt,olafhering/libvirt,rmarwaha/libvirt,iam-TJ/libvirt,siboulet/libvirt-openvz,trainstack/libvirt,taget/libvirt,emaste/libvirt,nertpinx/libvirt,iam-TJ/libvirt,warewolf/libvirt,warewolf/libvirt,trainstack/libvirt,novel/fbsd-libvirt,agx/libvirt,eskultety/libvirt,crobinso/libvirt,crobinso/libvirt,iam-TJ/libvirt,jardasgit/libvirt,bjzhang/libvirt,fabianfreyer/libvirt,cbosdo/libvirt,rlaager/libvirt,novel/fbsd-libvirt,wiedi/libvirt,agx/libvirt,jfehlig/libvirt,jfehlig/libvirt,jeckersb/libvirt,shugaoye/libvirt,libvirt/libvirt,VenkatDatta/libvirt,VenkatDatta/libvirt,trainstack/libvirt,olafhering/libvirt,rlaager/libvirt,novel/fbsd-libvirt,VenkatDatta/libvirt,shugaoye/libvirt,eskultety/libvirt,andreabolognani/libvirt,taget/libvirt,wiedi/libvirt,nertpinx/libvirt,andreabolognani/libvirt,rlaager/libvirt,agx/libvirt,zippy2/libvirt,warewolf/libvirt,shugaoye/libvirt,jeckersb/libvirt,dumbbell/libvirt,crobinso/libvirt,warewolf/libvirt,rmarwaha/libvirt,fabianfreyer/libvirt,jeckersb/libvirt,zippy2/libvirt,agx/libvirt,datto/libvirt,dumbbell/libvirt,bjzhang/libvirt,bjzhang/libvirt,datto/libvirt,nertpinx/libvirt,wiedi/libvirt,rmarwaha/libvirt,wiedi/libvirt,datto/libvirt,jeckersb/libvirt,rlaager/libvirt,novel/fbsd-libvirt,dumbbell/libvirt,eskultety/libvirt,siboulet/libvirt-openvz,eskultety/libvirt,fabianfreyer/libvirt,zhlcindy/libvirt-1.1.4-maintain,bjzhang/libvirt,jfehlig/libvirt,wiedi/libvirt,siboulet/libvirt-openvz,emaste/libvirt,taget/libvirt,trainstack/libvirt,iam-TJ/libvirt,rmarwaha/libvirt,cbosdo/libvirt,jardasgit/libvirt,trainstack/libvirt,iam-TJ/libvirt,emaste/libvirt,nertpinx/libvirt,jfehlig/libvirt,cbosdo/libvirt,zhlcindy/libvirt-1.1.4-maintain,libvirt/libvirt,dumbbell/libvirt,eskultety/libvirt,warewolf/libvirt,zhlcindy/libvirt-1.1.4-maintain,rmarwaha/libvirt1,jardasgit/libvirt,novel/fbsd-libvirt,jeckersb/libvirt,cbosdo/libvirt,rmarwaha/libvirt1,iam-TJ/libvirt,datto/libvirt,novel/fbsd-libvirt,taget/libvirt,zhlcindy/libvirt-1.1.4-maintain