* Remove condition_effects_prefer_not_to_say field
* Change reason type
* Remove prefer not to say from illness
* add majorrepairs,propcode and infer postcode
* Update previous location and la
* Update majorrepairs, national and reasonpref
* Update housing benefits fields
* rename file
* Add previous postcode
* Move inferred postcode to model
* refactor infered poscode method
* Remove unneeded import
* update miration and some mappings
* Remove duplicate migration command
kosiakkatrina