Updated mediawiki/extensions
Project: mediawiki/extensions/Scribunto  df568c6a324786a09af9905bd4400e0f330d7169

(bug 45774) Add title.fileExists, improve title.exists

People sometimes want to know if the actual file exists, not just the
file description page. Support that.

Also alias .exists to .fileExists for the Media namespace, since that's
what the Media namespace is for.

And while we're at it, fix .exists for special pages too.

Bug: 45774
Change-Id: I019adc89858a1d32995a38d5e8eef32577fd32d6