RE: Issue 1310_CACHE

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> ----------
> Change section 13.10, 4th paragraph from
> 
>    Some HTTP methods may invalidate an entity. This is either
>    the entity referred to by the Request-URI, or by the Location
>    or Content-Location response-headers (if present).
>    These methods are:
> 
>    o PUT
>    o DELETE
>    o POST
> 
>    In order to prevent denial of service attacks, an invalidation
>    based on the URI in a Location or Content-Location header MUST
>    only be performed if the host part is the same as in the
>    Request-URI.
> 
> to
> 
>    All non-idempotent methods SHOULD invalidate a cached entity
>    identified either by the Request-URI, or by a Content-Location
>    header (if present).
> 
>    In order to prevent denial of service attacks, an invalidation
>    based on the URI in Content-Location header MUST only be
>    performed if the host part is the same as in the Request-URI.
> 
This would be wrong. PUT is idempotent, as is DELETE, and both of them
need to invalidate what is in the Request-URI, or Content-Location
header (if present).

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