Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  2860e198b339bfaf03278d7f1eb7605b84d440d4
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Readd onUserLoginComplete hook handler

This seems to have been eaten by a bad merge earlier. Without this,
there is no handling of an anon's watchlist tap post-login or acct
creation.

Change-Id: I48377b5400f83ebd866ef0306621c8f36e62457b