Add 'libltdl' library into 'calico/ctl' docker image
Add 'libltdl' library into 'calico/ctl' docker image

Change-Id: Idce449f1866d6010990c9cef1c98dbd97d1f8e28

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