As part of fixing issue 263, pdfrw will no longer support the rl_xobj_name attribute for pdfrw objects, so we stop using it from inside the extension.
As part of fixing issue 263, pdfrw will no longer
support the rl_xobj_name attribute for pdfrw objects,
so we stop using it from inside the extension.


pombreda/rst2pdf,rst2pdf/rst2pdf,liuyi1112/rst2pdf,rst2pdf/rst2pdf,liuyi1112/rst2pdf,pombreda/rst2pdf