Update Backbone.js plugin to handle event map syntax.

Author: jgerigmeyer

plugins/backbone.js

@@ -13,9 +13,20 @@ if (!Backbone) {
 
 function makeBackboneEventsOn(oldOn) {
   return function BackboneEventsOn(name, callback, context) {
-    var _callback = callback._callback || callback;
-    callback = Raven.wrap(callback);
-    callback._callback = _callback;
+    var wrapCallback = function (cb) {
+      var _callback = cb._callback || cb;
+      cb = Raven.wrap(cb);
+      cb._callback = _callback;
+      return cb;
+    };
+    if (typeof name === 'object') {
+      // Handle event maps.
+      for (var key in name) {
+        name[key] = wrapCallback(name[key]);
+      }
+    } else {
+      callback = wrapCallback(callback);
+    }
     return oldOn.call(this, name, callback, context);
   };
 }