Add initial Eucalyptus support.
Fix merge conflict in environments.yml
Merge branch 'testing' of github.com:viglesiasce/aminator
Simplify Eucalyptus configuration.
Add basic apt_script provisioner
Merge pull request #112 from viglesiasce/eucalyptus-support

Eucalyptus support.  We'll need to add some documentation in the release notes on how to get help from Eucalyptus as this hasn't been tested by anyone at Netflix.  Thanks @viglesiasce