replaced firstname with github handle;
replaced firstname with github handle;

mirage/mirage-vagrant-vms,sjfloat/mirage-vagrant-vms,englishm/vagrant-xen,yifanz/mirage-vagrant-vms,yifanz/mirage-vagrant-vms,mirage/mirage-vagrant-vms,englishm/vagrant-xen,sjfloat/mirage-vagrant-vms