reply_to_object function is broken for binary keys

There is currently no way to opt out of the way hgetall works with the
node_redis library and if any of the keys have binary, they are
incorrectly converted to the charactor 0xFEFF instead. This makes it
impossible to fully use HGETALL.

index.js

@@ -590,7 +590,7 @@ function reply_to_object(reply) {
     }
 
     for (j = 0, jl = reply.length; j < jl; j += 2) {
-        key = reply[j].toString();
+        key = reply[j].toString('binary');
         val = reply[j + 1];
         obj[key] = val;
     }