Move AssistiveMML and InTabOrder menus to new Accessibility submenu (coordinates with MathJax-a11y#153 to move accessibility menu items to the same location)
Move AssistiveMML and InTabOrder menus to new Accessibility submenu (coordinates with MathJax-a11y#153 to move accessibility menu items to the same location)

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