Vagrantfile: make sure qemu is installed, add SMP
Vagrantfile: make sure qemu is installed, add SMP

alexzorin/libvirt-go,libvirt/libvirt-go,libvirt/libvirt-go,rgbkrk/libvirt-go,rgbkrk/libvirt-go,rgbkrk/libvirt-go,libvirt/libvirt-go,libvirt/libvirt-go,alexzorin/libvirt-go