Added new AuthenticatingQuestionPage class which extends Authenticating controller and should be used for Question Pages
Listing class now contains a method to retreive a completed page by page_id
Removed debugging gubbins
QuestionPageDisplay now retrieves Page using the new getByPageId method in Listing, uses to load previously entered questions
Refactored all QuestionPages to extend new AuthenticatingQuestionPage class and use inherited methods for saving questions to pages
Remove old imports from Service.java
Removed logging stuff and email now loads from getEmail() method
Merge pull request #126 from alphagov/page_values_not_retaining_after_upload

Page values not retaining after upload