Updated mediawiki/extensions
Project: mediawiki/extensions/GoogleCustomWikiSearch  697410bd87099928f76611d6b04c19cb4149af6a

Consistency tweaks in description message

* Remove period from end of description
* Remove "MediaWiki". Sure, what else?

Change-Id: I09014fec2142a1efedad7d4fbe3e99e550dcc2a7