Default NODES list to ""
Merge branch 'master' of github.com:eucalyptus/eucalyptus-cookbook
Change keypair to be named my-first-keypair.pem
Revert "Default NODES list to """

This reverts commit a16c74f3d3f2a5bb5d570562295666cbc92f1f3e.
Merge pull request #30 from gregdek/master

Tip of the day and tutorial additions
Merge pull request #10 from eucalyptus/master

Merge changes from upstream