Fix problem with image data file used by useOldImageData:true.  This caused problems for iPad/iPhone, etc. that use image mode.  (Resolves issue at https://sourceforge.net/projects/mathjax/forums/forum/948700/topic/3791988).
Fix problem with image data file used by useOldImageData:true.  This caused problems for iPad/iPhone, etc. that use image mode.  (Resolves issue at https://sourceforge.net/projects/mathjax/forums/forum/948700/topic/3791988).

git-svn-id: 6d41d2acb4a6bb5bf9e21751e9e902310f3c0a19@544 b8fd5906-0fad-46e2-a0d3-10d94ff285d1

kwangkim/mathoid,wikimedia/mathoid,physikerwelt/mathoid-server,nvp2211/MathJax,ManrajGrover/MathJax,cheerfulstoic/MathJax,GerHobbelt/MathJax,mcanthony/MathJax,anueshenxing/MathJax,thomasjm/MathJax,nvp2211/MathJax,jeremykenedy/MathJax,physikerwelt/MathJax,GerHobbelt/MathJax,segmentio/MathJax,Edraak/MathJax,wikimedia/mathoid,cben/MathJax,physikerwelt/mathoid-server,minrk/components-mathjax,jinntrance/mathjax,anueshenxing/MathJax,MonashAlexandria/mathoid,CengageEng/MathJax,cben/MathJax,physikerwelt/mathoid-server,jinntrance/mathjax,thomasjm/MathJax,louisd67/formules-science,mcanthony/MathJax,jeremykenedy/MathJax,thomasjm/MathJax,MonashAlexandria/mathoid,ManrajGrover/MathJax,Edraak/MathJax,kwangkim/mathoid,thomasjm/MathJax,Galadirith/MathJax,cheerfulstoic/MathJax,perseoq/MathJax,thomasjm/MathJax,kwangkim/mathoid,sagemath/MathJax,wikimedia/MathJax,anusornc/MathJax,kwangkim/mathoid,minrk/components-mathjax,minrk/mathjax-component,perseoq/MathJax,anusornc/MathJax,rachetfoot/MathJax,Ivanwangcy/MathJax,minrk/mathjax-component,wikimedia/mathoid,wikimedia/mathoid,Ivanwangcy/MathJax,dpvc/MathJax,sagemath/MathJax