Remove the DummyBox hack.
Remove the DummyBox hack.

jasco/WeasyPrint,Kozea/WeasyPrint,jasco/WeasyPrint,andrewleech/WeasyPrint,Kozea/WeasyPrint,marclaporte/WeasyPrint,andrewleech/WeasyPrint,prepare/TestWeasyPrint,prepare/TestWeasyPrint,marclaporte/WeasyPrint