Fixes TRAINVM-43

This will add a rc.local command to extract PE and delete the
  installer for training VMs.
For learning VMs, this does nothing currently - the learning VM needs
  some massaging yet, so it will go into the ks eventually if needed
might as well fix the learning vm now
Merge pull request #196 from casharma/fix/TRAINVM-43

Fix/trainvm 43