Fix conditional
Merge branch 'master' of https://github.com/mud-turtles-2014/palate into seed-for-demo
Merge pull request #128 from mud-turtles-2014/seed-for-demo

Seed for demo
Fix display of error when event creator does not invite other users
Fix invitation validations

- Fix error message for empty email field
- Add error message for when user invites self
Merge pull request #129 from mud-turtles-2014/prevent_invite_self

Prevent invite self