Tidy kubernetes Makefile targets after rebasing
Tidy kubernetes Makefile targets after rebasing

Rebased onto the libnetwork branch, which implemented its own
Makefile. Here's some tidying to make the kubernetes Make target
more sensible.

tomdee/calico-containers,caseydavenport/calico-docker,Metaswitch/calico-docker,CiscoCloud/calico-docker,fasaxc/calicoctl,fasaxc/calicoctl,projectcalico/calico-docker,projectcalico/calico-containers,caseydavenport/calico-containers,quater/calico-containers,robbrockbank/calicoctl,Metaswitch/calico-docker,tomdee/calico-containers,fasaxc/calico-docker,webwurst/calico-docker,robbrockbank/calico-containers,dalanlan/calico-docker,projectcalico/calico-containers,projectcalico/calico-docker,TrimBiggs/calico-docker,alexhersh/calico-docker,caseydavenport/calico-containers,insequent/calico-docker,TrimBiggs/calico-docker,tomdee/calico-docker,robbrockbank/calico-docker,TeaBough/calico-docker,dalanlan/calico-docker,CiscoCloud/calico-docker,fasaxc/calico-docker,insequent/calico-docker,webwurst/calico-docker,johscheuer/calico-docker,robbrockbank/calico-containers,quater/calico-containers,tomdee/calico-docker,TrimBiggs/calico-containers,robbrockbank/calicoctl,robbrockbank/calico-docker,caseydavenport/calico-docker,TrimBiggs/calico-containers,caseydavenport/calico-containers,TeaBough/calico-docker,johscheuer/calico-docker,alexhersh/calico-docker,projectcalico/calico-containers