Make vmware contentID unique
Make vmware contentID unique

Match to ID defined in staging in the following PR: https://github.com/rackerlabs/docs-dedicated-vcloud/pulls
smashwilson/nexus-control,ktbartholomew/nexus-control,meker12/nexus-control,rackerlabs/nexus-control,meker12/nexus-control,ktbartholomew/nexus-control,rackerlabs/nexus-control,ktbartholomew/nexus-control,smashwilson/nexus-control,meker12/nexus-control,rackerlabs/nexus-control