More viewport unit tests - resize, get and set rotation, and the start of zoomBy and zoomTo.
More viewport unit tests - resize, get and set rotation, and the start of zoomBy and zoomTo.

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