Updated mediawiki/extensions
Project: mediawiki/extensions/Echo  2cacf82efaf9beb7784d57a260fb1f9b751f64f6

Restore QUnit tests to reflect alert as default tab

This reverts the tests and amends them after the
application of commit 5da9eac08a5507eaaaa7a5ca1d8172ca61fceffd.

Luckily nothing appears to be broken.

Change-Id: I67acfe5dc74ef750d5443dd619dbb114623ee233