Protege merge of famhistapi branch ontology into dev branch ontology
Correct duplicate VitalSign restriction on height in VitalSignSet (chb/smart_project_management#125)
Corrections to SmokingStatus individuals

Remove unnecessary individuals 230059006 and 405746006.  These were
superceded by 428041000124106 and 266927001 respectively.  Remove
superfluous title property "Smoker, current status unknown" for
individual 266927001.
More famhist->dev onotology merge corrections

Remove duplicate restrictions "dateOfBirth only Literal" on VCard and
"smokingStatus only CodedValue" on SocialHistory.  Remove duplicate
example annotation on Allergy.

(chb/smart_project_management#125)