* CLDC-4168: Add check for mortgage length known
* CLDC-4168: Add mortgage length known to question page
* CLDC-4168: Make mortgage length conditional on interview
requires a little changing to question logic to account for if the conditional question is not visible right now
* CLDC-4168: Add R override to BU
* CLDC-4168: Enforce mortlen is not R if buyer not interviewed in BU
* CLDC-4168: Update tests
* CLDC-4168: Add a lint task that autocorrects
* CLDC-4168: Add mortgage length known to sales log factory
* CLDC-4168: Allow mortgage not know if buyer wasn't interviewed
previously had this the wrong way around. this makes sense because if you interviewed the buyer you should know this
* CLDC-4168: Rename mortgage_length_known to mortlen_known
matches the mortlen field
* fixup! CLDC-4168: Add mortgage length known to question page
remove old year numbers
* fixup! CLDC-4168: Rename mortgage_length_known to mortlen_known
* fixup! CLDC-4168: Allow mortgage not know if buyer wasn't interviewed
missed test fix
* CLDC-4168: Revert changes to outright_sale section
* fixup! CLDC-4168: Revert changes to outright_sale section
* fixup! CLDC-4168: Update tests
* CLDC-4168: Allow for "r" in mortlen
Samuel Young