calico/node: Update felix to 2.1.0-rc1
calico/node: Update felix to 2.1.0-rc1

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