jspdf crashes when there are many images

[saurabhmoc]

When there are more than 40-45 images in html pages when i convert them into pdf the jspdf crashes my code for output is as follow

 var string = doc.output('datauristring');
            var x = window.open();
            x.document.open();
            x.document.location = string;

and i am using addimage method to add images

[diegocr]

Please search this repo before creating new issues, see #99 and #300