Upgraded DNS etcd to 2.0.7.
Upgraded DNS etcd to 2.0.7.

BitBldr/kubernetes-vagrant-coreos-cluster,prashanthrv/kubernetes-vagrant-coreos-cluster,amannm/kubernetes-vagrant-coreos-cluster,potgieterdl/kubernetes-vagrant-coreos-cluster,ericjperry/kubernetes-vagrant-coreos-cluster,windwizard/kubernetes-vagrant-coreos-cluster-pub,v1k0d3n/kubernetes-vagrant-coreos-cluster,geseib/kubernetes-vagrant-coreos-cluster,tcichowicz/kubernetes-vagrant-coreos-cluster,ndobson/kubernetes-vagrant-coreos-cluster,gaia-sandbox/kubernetes-vagrant-coreos-cluster,schatt/kubernetes-vagrant-coreos-cluster,pires/kubernetes-vagrant-coreos-cluster,RichardKnop/paas,lrolaz/kubernetes-vagrant-coreos-cluster,lrolaz/kubernetes-vagrant-coreos-cluster