tie breaking

i've got this, does it groove for you? it's *marginally* faster too!

```diff
diff --git a/lib/clandestined/rendezvous_hash.rb b/lib/clandestined/rendezvous_hash.rb
index 4ceb6ac..be256bb 100644
--- a/lib/clandestined/rendezvous_hash.rb
+++ b/lib/clandestined/rendezvous_hash.rb
@@ -33,12 +33,17 @@ module Clandestined
     end
 
     def find_node(key)
-      scores = Hash[]
+      high_score = -1
+      winner = nil
       nodes.each do |node|
         score = hash_function.call("#{node}-#{key}")
-        scores[score] = scores.fetch(score, []) << node
+        if score > high_score
+          high_score, winner = score, node
+        elsif score == high_score
+          high_score, winner = score, [node, winner].max
+        end
       end
-      scores.max[1].max
+      winner
     end
 
   end
```