Updated mediawiki/extensions
Project: mediawiki/extensions/VisualEditor  6c5d83449de6afad30b27c58c22ba3aa1cb5f46a
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Remove trailing commas

JSHint doesn't detect this (this is an open bug against jshint), but
Eclipse does

Change-Id: Iebfc0f9c6263f60898739c9d19400357a65da0e9