Merge pull request #12 from eucalyptus/master

Merge pull request #33 from gregdek/master
Too many changes in one commit, sigh. But in general: improving
explanations, putting the tutorial image in the tutorial bucket,
adding error checking, and so on.
Various improvements
Merge branch 'master' of github.com:gregdek/eucalyptus-cookbook
Point to the tutorial after install is complete.
Cleaning up the TODO list
Merge pull request #34 from gregdek/master

Tutorial improvements
Put help information in the fail message
Spiffy new /etc/motd message
Merge pull request #35 from gregdek/master

Better failure message, new /etc/motd message
Put the correct path in for tutorials
Merge pull request #36 from gregdek/master

Put the correct path in for tutorials
Fix broken tutorial paths
Merge pull request #37 from gregdek/master

Fix broken tutorial paths