Fix doc in point.js
Fix doc in point.js

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