inFlight should only count active requests, not entire queue

Author: roadscape

src/api/index.js

@@ -246,12 +246,11 @@ class Steem extends EventEmitter {
         });
 
         debugWs('Sending message', payload);
+        this.inFlight += 1;
         this.ws.send(payload);
       }))
       .nodeify(callback);
 
-    this.inFlight += 1;
-
     return this.currentP;
   }