spreadsheet change splitting father name into given_name and family_name

- pending orphan migration converting father name to given name and family name
- amending tests to suit
- amending columns in config/settings.yml
- fix arabic in province after discussion with client
- use of new excel format provided by client
- client wants to change father_martyr settings to Y / N values, have added
  these as allowed values but have kept the old ones too. These could be
  removed if this was preferred.
Merge pull request #237 from PurityControl/excel-update

OSRA-301 #Done
OSRA-300 split `father_name`: cleanup

OSRA-307 clean up temporary methods

 - remove `Orphan#father_name=` & spec
 - retain `Orphan#father_name` (used in many views) & clean up spec
Merge pull request #238 from NikitaAvvakumov/osra-307-father-name-split-cleanup

OSRA-300 split `father_name`: cleanup