Bug fixes GALORE
Bug fixes GALORE

* No longer using a hardcoded SSH key name - specify it in the config
  file with the key "vmpooler_ssh_key" or the environment variable
  "VMPOOLER_SSH_KEY"
* Configurable ssh/scp options - specified in the config file
  with the key "vmpooler_ssh_options" or the environment variable
  "VMPOOLER_SSH_OPTIONS"
* Added a couple of todo's
* Added the `config` command, which dumps the state of the current
  configuration to the screen -- there's room for improvement, but
  it's a good start
*

mckern/vmpooler-shell