Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  19d7b95b778eccb3b821e2cf525310f19f9aef85
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(bug 43291) introduction of jQuery.wikibase.statementview

inherits from claimview, displayed in claimlistview on item entity pages. For now same
functionality as claims but different object. Introduced new template for this view.

- patchset 2: adjustments to selneium test
- patchset 5: adjusted JS wb.Statement.newFromJSON to new serialized statements structure.

Change-Id: Id74cde0758eb9d1759244e6ab2a89c8d1bb90959