Updated mediawiki/extensions
Project: mediawiki/extensions/OAuth  221458cb2990ad78c1e1c947e411175bac7fac3a

Added $wgMWOAuthSharedUserSource to avoid ambiguity if two extensions handle the hooks

* Also throw an error if no hook sets the required values

Extensions implementing OAuthGetUserNamesFromCentralIds, OAuthGetLocalUser
FromCentralId, or OAuthGetCentralIdFromLocalUser hooks should check that
their extension is named by this parameter, otherwise they should not
attempt to setup the user.

Change-Id: I8886ab6e14897bacc2b74befe89f635ef8035c88