new Mocha needs suiteURL function from original reporter

Author: pishposh

lib/_patch/mocha-plugin.js

@@ -20,8 +20,10 @@
     return test.fullTitle().replace(/#/g, '');
   }
 
-  return Mocha.BrowserStack = function(runner, root) {
-    Mocha.reporters.HTML.call(this, runner, root);
+  var origReporter = mocha._reporter;
+
+  Mocha.BrowserStack = function(runner, root) {
+    origReporter.apply(this, arguments);
 
     var count = 1,
       that = this,
@@ -61,4 +63,8 @@
       BrowserStack.post("/_report", results, function(){});
     });
   };
+
+  Mocha.BrowserStack.prototype = origReporter.prototype;
+
+  return Mocha.BrowserStack;
 })();