Moved old jquery recognition to seperate file

src/static/js/ace2_common.js

@@ -1,5 +1,5 @@
 /**
- * This code is mostly from the old Etherpad. Please help us to comment this code. 
+ * This code is mostly from the old Etherpad. Please help us to comment this code.
  * This helps other people to understand this code better and helps them to improve it.
  * TL;DR COMMENTS ON THIS FILE ARE HIGHLY APPRECIATED
  */
@@ -34,18 +34,6 @@ function object(o)
   return new f();
 }
 
-var userAgent = (((function () {return this;})().navigator || {}).userAgent || 'node-js').toLowerCase();
-
-var browser = {
-  version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
-  safari: /webkit/.test(userAgent),
-  opera: /opera/.test(userAgent),
-  msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
-  mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent),
-  windows: /windows/.test(userAgent),
-  mobile: /mobile/.test(userAgent) || /android/.test(userAgent)
-};
-
 function getAssoc(obj, name)
 {
   return obj["_magicdom_" + name];
@@ -96,7 +84,6 @@ var noop = function(){};
 
 exports.isNodeText = isNodeText;
 exports.object = object;
-exports.browser = browser;
 exports.getAssoc = getAssoc;
 exports.setAssoc = setAssoc;
 exports.binarySearch = binarySearch;

src/static/js/jquery_browser.js

@@ -0,0 +1,44 @@
+/*
+  Copied from jQuery 1.8, the last jquery version with browser recognition support
+*/
+
+// Use of jQuery.browser is frowned upon.
+// More details: http://api.jquery.com/jQuery.browser
+// jQuery.uaMatch maintained for back-compat
+var uaMatch = function( ua ) {
+    ua = ua.toLowerCase();
+
+    var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
+        /(webkit)[ \/]([\w.]+)/.exec( ua ) ||
+        /(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
+        /(msie) ([\w.]+)/.exec( ua ) ||
+        ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
+        [];
+
+    return {
+        browser: match[ 1 ] || "",
+        version: match[ 2 ] || "0"
+    };
+};
+
+var userAgent = navigator.userAgent;
+var matched = uaMatch(userAgent);
+var browser = {};
+
+if ( matched.browser ) {
+    browser[ matched.browser ] = true;
+    browser.version = matched.version;
+}
+
+// Chrome is Webkit, but Webkit is also Safari.
+if ( browser.chrome ) {
+    browser.webkit = true;
+} else if ( browser.webkit ) {
+    browser.safari = true;
+}
+
+//custom extensions, the original jquery didn't have these
+browser.windows = /windows/.test(userAgent);
+browser.mobile = /mobile/.test(userAgent) || /android/.test(userAgent);
+
+exports.browser = browser;

src/static/js/rjquery.js

@@ -2,4 +2,9 @@
 // Proviedes a require'able version of jQuery without leaking $ and jQuery;
 
 require('./jquery');
-exports.jQuery = exports.$ = $.noConflict(true);
+var jq = window.$.noConflict(true);
+
+//added the old browser recognition
+jq.browser = require('./jquery_browser').browser;
+
+exports.jQuery = exports.$ = jq;