ruby-puavobs: redirect virsh stdout to devnull
bootserver: redirect virsh output to devnull
ruby-puavobs: fix prompt wording
bootserver: remove unused require
bootserver: use single-quotes instead of double-quotes whenever possible (ruby)
bootserver: wrap long lines
ruby-puavobs: return (bool, code) tuple from register/unregister functions
ruby-puavobs: fix register function returnings once again
ruby-puavobs: unregister using xml-route to avoid 302 redirection
ruby-puavobs: trivial cleanup
bootserver: add smoke testing tool prototype