Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  53e965b4699b924ad79986cb79a27bf757e789a5

Feature detect OOJS compatibility

OOJS uses es5-shim but does not use es5-sham so the following ES5
functions are not polyfilled:

Object.getPrototypeOf
Object.defineProperty
Object.getOwnPropertyDescriptor
Object.getOwnPropertyNames
Object.create
Object.defineProperties
Object.seal
Object.freeze
Object.preventExtensions
Object.isSealed
Object.isFrozen
Object.isExtensible

Grepping on them shows that Object.create is the only one in use in
OOJS, so checking for its existence should be enough to ensure that
OOJS works in the given browser.

Change-Id: Icf54a9c35b3599dd1831c10ffcd9f15573dc8b00
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/813