Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  84cb17aebef18bdd67ffbd2964ffb67e0c1cf215
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(bug 43585) testing 0 as value for label/description/aliases

- this adds selenium tests

Change-Id: Ie1c0423ac306b7686e0555e658c0db6a5f25aa9e