added dob_validation to ensure orphan younger than 22 years old
remove setting up orphan statuses as no longer needed
fixed typo and reworded birthday validation for clarity
made orphan age validation method more descriptive
fix spec so that method name change is also changed for the test
Merge pull request #77 from PurityControl/orphan_age_validation

OSRA-115 # Resolved
pending_orphan_list and pending_orphan migrations and models
code review
code review