PaceFeedEquivalence

[Tim Bray <Tim.Bray@xxxxxxx>]

While the objective is fine, I don't believe we need a separate section 
on Feed Equivalence.  I propose:

(1) a note in both the Format and Protocol specs saying "when testing 
URIs for equivalence, implementors should consider the discussion in 
RFC2396bis section 6."  (currently 
http://gbiv.com/protocols/uri/rev-2002/rfc2396bis.html#comparison).
(2) a note in section 4.2.6 of the format draft saying "since the same 
feed may be served from different URIs, and feeds may be accessed other 
than by dereferencing a URI, the <atom:id> in <atom:head> may be used 
to test whether two feeds are the same."

-Tim