updated package.json for 2.0.0
updated package.json for 2.0.0

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