Update changelog with right year for 3.0.0
Update changelog with right year for 3.0.0

nlemoine/papi,nlemoine/papi,ekandreas/papi,isotopsweden/wp-papi,ekandreas/papi,wp-papi/papi,isotopsweden/wp-papi,wp-papi/papi,isotopsweden/wp-papi,nlemoine/papi,wp-papi/papi,ekandreas/papi