[BZ#741721] text-decoration value should be inheritable
Submitted by ifu..@..com
Even though W3 SVG specification states that text-decoration attribute is not "inheritable", this is not what it means literally as illustrated in its following PNG render (http://www.w3.org/TR/SVG/images/text/textdecoration01.png). The fourth row example shows that all descendant tspan elements have inherited the text-decoration=underline value from the parent text element. Mozilla's SVG rendering is consistent to this example, but librsvg isn't.