Iterable is now supported, even more basic than Collection.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6515 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/main/java/com/threerings/io/Streamer.java

@@ -78,7 +78,7 @@ public class Streamer
             // if it's not an array, it must be streamable, or a Collection or Map
             if (!target.isArray()) {
                 return Streamable.class.isAssignableFrom(target) ||
-                    Collection.class.isAssignableFrom(target) ||
+                    Iterable.class.isAssignableFrom(target) ||
                     Map.class.isAssignableFrom(target);
             }