Merge branch 'issue350' into develop

Resolves issue #350.

unpacked/jax/input/TeX/config.js

@@ -24,7 +24,7 @@
 
 MathJax.InputJax.TeX = MathJax.InputJax({
   id: "TeX",
-  version: "2.1",
+  version: "2.1.2",
   directory: MathJax.InputJax.directory + "/TeX",
   extensionDir: MathJax.InputJax.extensionDir + "/TeX",
   

unpacked/jax/input/TeX/jax.js

@@ -1503,7 +1503,7 @@
       size = String(size).replace(/(\.\d\d\d).+/,'$1')+"em";
       var delim = this.GetDelimiter(name);
       this.Push(MML.TeXAtom(MML.mo(delim).With({
-        minsize: size, maxsize: size, scriptlevel: 0,
+        minsize: size, maxsize: size,
         fence: true, stretchy: true, symmetric: true
       })).With({texClass: mclass}));
     },