Update changelog for v1.2.0
Update changelog for v1.2.0

hackforla/ohana-api-la,codeforamerica/ohana-api,codeforamerica/ohana-api,hackforla/ohana-api-la,smcgov/ohana-api-smc,smcgov/ohana-api-smc,smcgov/ohana-api-smc,appropriate/ohana-api,appropriate/ohana-api,appropriate/ohana-api,codeforamerica/ohana-api,hackforla/ohana-api-la,hackforla/ohana-api-la,smcgov/ohana-api-smc,codeforamerica/ohana-api,appropriate/ohana-api