Build: Update test code for compatibility with QUnit 2.x (#4297)

Also, run `grunt npmcopy` to sync the "external" directory with dependencies
from package.json. For example, the Sinon library version didn't match.

Ref gh-4234
Closes gh-4297

1 files changed, 1 insertions, 1 deletions

diff --git a/test/unit/callbacks.js b/test/unit/callbacks.js
index 04d44443d..b440f3822 100644
--- a/test/unit/callbacks.js
+++ b/test/unit/callbacks.js
@@ -1,5 +1,5 @@
 QUnit.module( "callbacks", {
-	teardown: moduleTeardown
+	afterEach: moduleTeardown
 } );
 
 ( function() {