* Add fixed term tenancy validation
* refactor validate_fixed_term_tenancy
* add fixed_term_tenancy pattern to api docs and make it dynamically not required
* Add validate_net_income_uc_proportion validation/
* refactor validation method;
* Update net income options in doc
* rubocop
* refactor validate_net_income_uc_proportion and increase the persons checked to 8
* rename tenant economic status field
No errors need to be added if the net income is given as 0 but no frequency
is provided. It just needs to be made not required if the net income is
refused (given as 0) so that the record can still be added.
* Validate API created case logs
* Validate record completion
* Set complete or in progress status based on field presence validation
* Make autogenerated fields a named constant
* Test the whole validation
* Add some hated code comments to explain some things
* Be stricter about the params we allow mass updates on