Use correct name for maligngroup elements in toMathML output. Resolves issue #1089
Use correct name for maligngroup elements in toMathML output. Resolves issue #1089

dpvc/MathJax,thomasjm/MathJax,GerHobbelt/MathJax,thomasjm/MathJax,wikimedia/MathJax,GerHobbelt/MathJax,thomasjm/MathJax,thomasjm/MathJax,thomasjm/MathJax,jinntrance/mathjax,jinntrance/mathjax