Update puppet modules
Add "puppet" gem dependency (required by librarian-puppet)
Update puppet modules
Use bundler to run commands in readme
Make shell provisioners fail when any individual command fails
Check if module is loaded before unloading
Expect vbox installer exit code 1
Don't create "vagrant" user in provisioner (already done in preceed.cfg)
Expect "dd" to fail due to full disk
Add spec about vagrant user
Update vagrant_cloud
Don't use slash in "cd" path
Merge pull request #47 from njam/issue-47

Update puppet modules