Updated mediawiki/extensions
Project: mediawiki/extensions/Nonlinear  21a16bf060c1b81c40d7e76cb380fdc5120dc3f8
null
Consistency tweaks in preparation for adding extension to translatewiki.net

* Add header
* Define empty array
* article -> page
* Remove period from end of line

Change-Id: I6d393bc74d9a1081f1878f4e9780ebcd88621a92