[Mediawiki-i18n] Update report

[Federico Leva (Nemo)]

Hello, Gerard,
where are the current rules documented and where should the correct 
rules be gathered/reported?
I've seen Nike's list here: https://translatewiki.net/wiki/Plural Are 
all explicit rules used in MediaWiki defined in that plural-gettext.txt, 
and should corections be reported on talk or somehow in the table or...?
For instance, I read that Italian doesn't have custom rules anywhere, 
hence defaults to «plural rule "n != 1"», which is correct, so I don't 
have to do anything, right?
Thanks,
	Nemo