Updated mediawiki/extensions
Project: mediawiki/extensions/VisualEditor  02ae003f2bcd092ec5f1dbca64bd33b91543689f

[Browser test] Removing hard-coded MEDIAWIKI_USER value

Per this QA mail list discussion:
http://lists.wikimedia.org/pipermail/qa/2013-December/000799.html

Change-Id: Ide3bafe9b69eb5769eb99d0a3989d0e909f512ea