client should parse atom entry

If the server returns an atom entry, the client complains that its not a feed. Entries should also be supported, i.e.:

<?xml version="1.0" encoding="UTF-8"?>

<entry xmlns=\"http://www.w3.org/2005/Atom\">
  <title>Order 1</title>
  <id>http://localhost:3000/orders/1</id>
  <updated>2010-04-03T22:45:47Z</updated>
  <link href=\"http://localhost:3000/orders/1\" rel=\"self\"/>
</entry>