Merge pull request mathjax#86 from mathjax/issue85

Compensate for removed MathEvents.js.

Author: pkra

lib/mj-page.js

@@ -158,6 +158,10 @@ function ConfigureMathJax() {
 
       delete MathJax.Hub.config.styles;               // don't need any styles
       MathJax.Hub.Startup.MenuZoom = function () {};  // don't load menu or zoom code
+      MathJax.Extension.MathEvents = {
+        Event:{}, Touch:{}, Hover:{}                  // fake structure to avid errors
+      };
+      MathJax.Ajax.loaded[MathJax.Ajax.fileURL("[MathJax]/extensions/MathEvents.js")] = true;
 
       //
       //  When creating stylesheets, no need to wait for them

lib/mj-single.js

@@ -159,6 +159,10 @@ function ConfigureMathJax() {
 
       delete MathJax.Hub.config.styles;               // don't need any styles
       MathJax.Hub.Startup.MenuZoom = function () {};  // don't load menu or zoom code
+      MathJax.Extension.MathEvents = {
+        Event:{}, Touch:{}, Hover:{}                  // fake structure to avid errors
+      };
+      MathJax.Ajax.loaded[MathJax.Ajax.fileURL("[MathJax]/extensions/MathEvents.js")] = true;
 
       //
       //  When creating stylesheets, no need to wait for them