* form handler to return all questions from lettings forms for all years with ordering interleaved
functionality and tests
* refactor lettings log csv service and all associated tests
remove methods on log models when we can call them directly on associated models
update job to call the service directly with the collection of logs rather
minor modifications to the sales log csv service
update many test files to test the appropriate logic in the appropriate place
* tidying
final amendments to tests
remove commented code
rename variable
* change the position of the rent value check field in the headers
* CLDC-2492 add creation method field to logs (#1738)
* create migrations to add creation method fields to both log types
* add enum definition to logs for creation method
* upadte csv export services to retrieve creation method values direct from the log, remove methods previously used from the log model
* run migrations to update schema
* ensure that logs created via bulk upload have this set correctly when created
Arthur Campbell