Add missing lazy properties

Add legacy_user_id to admin.user.User
Add public_ip_addresses to infrastructure.server.Server
Merge branch 'master' of github.com:enStratus/mixcoatl into jaronson

* 'master' of github.com:enStratus/mixcoatl:
  Can now launch with CM Personalities specified
  List all CM Personality from automation/Personality
  Added automation/script support
  Can now launch with CM Accounts and Scripts specified.
  Ability to create CM accounts.
Add property descriptions
Merge pull request #25 from jaronson/jaronson

Add missing lazy properties