changelog update for new event names
changelog update for new event names

Iced-Tea/openseadragon,daverome/openseadragon,msalsbery/openseadragon,LarissaSmith/openseadragon,seanich/openseadragon,openseadragon/openseadragon,janelia-flyem/openseadragon,mcanthony/openseadragon,TMUND/openseadragon,Iced-Tea/openseadragon,avandecreme/openseadragon,lidasong2014/openseadragon,seanich/openseadragon,shaunstanislaus/openseadragon,ricochet2200/openseadragon,TMUND/openseadragon,mcanthony/openseadragon,LafayetteCollegeLibraries/openseadragon,goofwear/openseadragon,goofwear/openseadragon,avandecreme/openseadragon,rdlester/openseadragon,rdlester/openseadragon,openseadragon/openseadragon,jmnetus/openseadragon,jmnetus/openseadragon,daverome/openseadragon,janelia-flyem/openseadragon,shaunstanislaus/openseadragon,msalsbery/openseadragon,ricochet2200/openseadragon,lidasong2014/openseadragon,LarissaSmith/openseadragon,sul-dlss/openseadragon