enable "$" symbol as inline math delimiter

contributed by Roberto Di Remigio in PR #27

Author: bast

cicero/static/js/mathjax-setup.js

@@ -1,6 +1,8 @@
 MathJax.Hub.Config({
     tex2jax: {
-      skipTags: ['script', 'noscript', 'style', 'textarea', 'pre']
+      skipTags: ['script', 'noscript', 'style', 'textarea', 'pre'],
+      inlineMath: [['$','$'], ['\\(','\\)']],
+      processEscapes: true
     },
     "TeX": {
       Macros: {AA : "{\\unicode{x212B}}"}