feat:1、修复无数据时报错的问题。

2、新增自定义代码着色格式
3、新增自动加载配置文件

static/editor.md/lib/highlight/languages/vbscript-html.js

@@ -0,0 +1,19 @@
+/*
+Language: VBScript in HTML
+Requires: xml.js, vbscript.js
+Author: Ivan Sagalaev <maniac@softwaremaniacs.org>
+Description: "Bridge" language defining fragments of VBScript in HTML within <% .. %>
+Category: scripting
+*/
+
+function(hljs) {
+  return {
+    subLanguage: 'xml',
+    contains: [
+      {
+        begin: '<%', end: '%>',
+        subLanguage: 'vbscript'
+      }
+    ]
+  };
+}