Merge branch 'master' of git+ssh://db.debian.org/git/dsa-wiki

* 'master' of git+ssh://db.debian.org/git/dsa-wiki:
  per guest target dir for installs
  first puppetd -t will fail
  combine two blocks
  add -y to apt-get install
  when adding a new host, run puppet on draghi to update the firewall
  Update add-guest instructions
  do not wait for cert
  Update puppet howto:  automate checksum checking, make domain independent
  Copy etc/apt/preferences only if it exists
  s/ext3/ext4/