Merge pull request #27 from frederick-loranger/master

Prevent memory leaks when calling _request()

Author: danielstjules

lib/client.js

@@ -416,6 +416,7 @@
       // Add request callback
       client._requests[req.id] = function(err, result) {
         clearTimeout(timeout);
+        delete client._requests[req.id];
         if (err) return reject(new Error(err));
         resolve(result);
       };