* Added Language::userDate(), Language::userTime() and Language::userTimeAndDate...

* Added Language::userDate(), Language::userTime() and Language::userTimeAndDate() as new versions of respectively Language::date(), Language::time() and Language::timeanddate(), which take a User object in the second parameter to get time correction and format instead of having to do this when calling the methods and not wanting to user $wgUser's parameters.
* Moved Language::userAdjust() near other related function
* Updated ENotif stuff to use that functions so that the date format is not taken from the sending user but the receiver
* Removed $PAGEEDITDATEANDTIME parameter, unsed and not present in impersonal notification
* Also fixed the debug line in UserMailer::send()