* Update datails known numbering in the db
* Update check answers card headers
* Display same person pges for joint and non-joint purchase
* Only display person questions once
* Remove unused person class and methods
* Always display person known pages and update headers
* Fix depends on, show retirement validation for buyer 2
* test
* Add person 5 to test
* fix context description
* Display person known question for appropriate number of other household members
* tests
* update test
* Remove page id stubbing
* Remove redundant tests
* only put validation on the pages that are routed to
* Refactor tests
* Add min and max for age 1 validation
* Add retirement value check column to the sales table
* Add retirement value check question and page
* Add retirement value check pages to household characteristics
* Reuse soft validations for retirement in sales
* Update person_indexes
* Add old_persons_shared_ownership validation
* Display the retirement value check in correct places depending on the joinpur value
* Update page IDs
* It's always joint purchase if age 2 is displayed
* lint
* lint
kosiakkatrina