Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  033281d5b8a3d0f4990835405945e9c95c1ad2c1

Fix broken documentation in Lib

Fixing a whole bunch of documentation errors as reported by the
PHPStorm code analysis. Along with some obvious typos.

If you think I did something wrong, please ask.

Change-Id: I47988f27230e3d14f767e5fe393ef58e3d828b2d