add baseline title test for geoChoropleth
add baseline title test for geoChoropleth

mtraynham/dc.js,dc-js/dc.js,aaronhoffman/dc.js,TheDataShed/dc.js,TheDataShed/dc.js,dc-js/dc.js,TheDataShed/dc.js,dc-js/dc.js,mtraynham/dc.js,TheDataShed/dc.js,dc-js/dc.js,aaronhoffman/dc.js,aaronhoffman/dc.js,TheDataShed/dc.js,dc-js/dc.js,mtraynham/dc.js,aaronhoffman/dc.js,aaronhoffman/dc.js,mtraynham/dc.js,mtraynham/dc.js