Updated mediawiki/extensions
Project: mediawiki/extensions/CategoryTagSorter  c8ef99cdfee62613c08da5ac6264ee6e97e66961

Consistency tweaks in preparation for adding extension to translatewiki.net

* article -> page
* Message doc
* Remove superfluous newline per Siebrands CE

Change-Id: I943c9140d03e6319bd9b69d8fe2ac73112f2849c