Rev Felix to 2.2.0-rc4.
Rev Felix to 2.2.0-rc4.

Metaswitch/calico-docker,projectcalico/calico-docker,Metaswitch/calico-docker,projectcalico/calico-containers,projectcalico/calico-containers,projectcalico/calico-docker,insequent/calico-docker,projectcalico/calico-containers,insequent/calico-docker