added Packet support on docker-machine v0.2.0
added Packet support on docker-machine v0.2.0

Rucknar/rancher,summerQLin/rancher,imikushin/rancher,anapsix/rancher,reschrei1/rancher,imikushin/rancher,gpndata/rancher,hibooboo2/rancher,trukhinyuri/rancher,anapsix/rancher,dx9/rancher,hibooboo2/rancher,atyenoria/rancher,atyenoria/rancher,dbones/rancher,adamcarlile/rancher,wlan0/rancher,thuongdinh/rancher,trukhinyuri/rancher,adamcarlile/rancher,ostree/rancher,summerQLin/rancher,wlan0/rancher,reschrei1/rancher,atyenoria/rancher,dbones/rancher,ostree/rancher,gpndata/rancher,wlan0/rancher,hibooboo2/rancher,summerQLin/rancher,adamcarlile/rancher,dx9/rancher,jefflaplante/rancher,thuongdinh/rancher,mikedougherty/rancher,ostree/rancher,gpndata/rancher,anapsix/rancher,thuongdinh/rancher,trukhinyuri/rancher,jefflaplante/rancher,mikedougherty/rancher,dbones/rancher,Rucknar/rancher,jefflaplante/rancher