Add roll-over from mathjax/latest to mathjax/x.y-latest for references to the CDN (to make sure that all files come from the same version).  Resolves issue #1036.
Add roll-over from mathjax/latest to mathjax/x.y-latest for references to the CDN (to make sure that all files come from the same version).  Resolves issue #1036.

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