Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  ac7e6dc61ba2af2126ad6fd79dfb448c7b8b2df7

ModifyEntityTestBase should look like ApiTestCase

No point in having init() that isnt needed
Also no point in having the same code in the bot test
Change-Id: I878223d01372e2afe16acf241e2eb35c91887236