Hide the edit link for completed services
Don't show a page of questions for a completed listing
Prevent completed service from being saved
Listing objects not building properly for integration tests - work around in controller
Remove unused imports from home page
Prevent edit of completed before validation

- It makes more sense to prevent the editing of a completed service
  before any validation happens—whether or not the response
  validates is moot because it will never be saved
- It's also a slightly cleaner solution because it means not
  wrapping all of the saving functionality in a conditional
Merge pull request #121 from alphagov/completed-not-editable

Ensure that completed services can't be edited