Adding an Autoload instance to Type.rb so that I can load all known types for documentation purposes. And, of course, loading all types in puppetdoc. Also updating zone.rb to fix markdown's stupidity in trying to interpret the ERB template, and adding some timeouts to puppettest.rb

git-svn-id: https://reductivelabs.com/svn/puppet/trunk@1651 980ebf18-57e1-0310-9a29-db15c13687c0