Don't create new lines for floats with height = 0
Don't create new lines for floats with height = 0

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