Turning this from null to console

Turning ``this`` from ``null`` to ``console`` accorging to whatwg/console#3 to avoid issues under antique engines

Thanks again to @zloirock for mentioning this

polyfills/console/exception/polyfill.js

@@ -1,5 +1,5 @@
 console.exception = function exception() {
     if ("error" in console) {
-        Function.prototype.apply.call(console.error, null, arguments);
+        Function.prototype.apply.call(console.error, console, arguments);
     }
 };