Set default position value to 0 so that new pages go to the end of the list
Upgrade to Rails 3.2.16
Add page-display association
Set version spec for factory_girl_rails
Add a factory for generating test users
Add a subfactory for pages owned by a user
Update page unit tests to use FactoryGirl to build instances of Page
Add association between pages and displays, the other half of 4e1e232
The position now defaults to 0 so can remove the validation test after creation