RE: [ACTION-107] Locale Filter

> see 
> http://www.w3.org/International/multilingualweb/lt/drafts/its20/its20.html#LocaleFilter
> does this look OK for you?

Looks ok to me.

Just a few minor notes:

- The ITS version is missing in example 52.

- In the text “Implementations MUST NOT combine lists of language ranges from multiple rules or local attributes.” MUST NOT is not linked.

- Maybe "The Locale Filter data category associates with each selected node a list of extended language ranges conforming to [BCP47]. The list of language ranges is a comma-separated list of extended language ranges, including the wildcard language range "*". The list MUST NOT be empty. Whitespace surrounding language ranges is ignored."
Could be simplified has:
"The Locale Filter data category associates with each selected node a list of extended language ranges conforming to [BCP47]. The list is comma-separated and can include the wildcard extended language range "*". The list MUST NOT be empty. Whitespace surrounding language ranges is ignored."

-ys