Compare page title with $wgUser->getTitleKey() not $wgUser->getName(). New talk notif...

Compare page title with $wgUser->getTitleKey() not $wgUser->getName(). New talk notifications were being erroneously inserted when a user with spaces in their name edited their own user talk page. Bug had been present for at least 18 months, hidden by the fact that the subsequent page view clears the notification.