Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  7062a0d98ac009c62adc53f0911792979a0f0cae

Drop 5.3 repo only travis build (in German)

we run 5.3 on jenkins, so this is redundant.

Change-Id: I381eba1533c849934a7297bc8d385d47d78f5924