added whois to the apt-get list. This is to support mkpasswd which is used later to generate encrypted passwords in manifest files
added whois to the apt-get list. This is to support mkpasswd which is used later to generate encrypted passwords in manifest files

njbennett/docs-deploying-cf,cloudfoundry/docs-deploying-cf,cwest/docs-deploying-cf,shalako/docs-deploying-cf,jpalermo/docs-deploying-cf,bridgetkromhout/docs-deploying-cf