use post build steps to upload to vcloud or publish over SSH
added provisioning of jenkins.plugins.publish_over_ssh.BapSshPublisherPlugin.xml
Merge branch 'master' of github.com:StefanScherer/basebox-slave

* 'master' of github.com:StefanScherer/basebox-slave:
  cleaned up provider strings
  build packer from source as there is a bugfix for removing floppy from vmx