Updated mediawiki/extensions
Project: mediawiki/extensions/UploadWizard  04c4fb333fc96acb06e687f193ee8a73d3589213

Move makePreviewsFlag out of UploadWizard

Now it's just a method and property on the UI objects.

Change-Id: I23251e9b74c2c44e0130a730b2bb1d0f19614b91