OSRA-300 split orphan `father_name`: full_name

OSRA-304 update implementation of Orphan#full_name

 - change the `#full_name` method to use `family_name` instead of `father_name`
 - change orphan.feature; to be changed further when views updated
Merge pull request #230 from NikitaAvvakumov/osra-304-change-orphan-full-name

OSRA-300 split orphan `father_name`: full_name method