upgrade calicoctl to v0.17.0

adding option --proxy-mode for kubeproxy

Upgrade kuberenetes to v1.1.8

calico: enabling nat outgoing by default

On CoreOS, /etc/hosts does not always exist.

CoreOS support (Calico, Flannel, Weave)

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confirmed working change to mktemp command

update hyperkube version

Upgrade Calico and etcd

upgrade kubernetes to 1.1.7

Rollback docker 1.9

Jenkins

change tests, full path of kubectl binary

use ansible_service_mgr to detect init system

generate secrets on deployment machine

test travis with sudo=true instead of required

pin docker versions to 1.9 or earlier

Integration tests