Added logic to check for hap[i] disconnect and issue stop() when found

This cures memory leakage when using HomeSpan without a Home Hub.  Sockets are now properly closed when the Home App abruptly disconnects.

src/HAP.cpp

@@ -1217,6 +1217,7 @@ void HAPClient::getStatusURL(HAPClient *hapClient, void (*callBack)(const char *
 
   if(hapClient){
     hapClient->client.stop();
+    delay(1);
     LOG2("------------ SENT! --------------\n");
   }
 }

src/HomeSpan.cpp

@@ -229,9 +229,9 @@ void Span::pollTask() {
     processSerialCommand(cBuf);
   }
 
-  if(hapServer->hasClient()){                        // found new client
+  WiFiClient newClient;
   
-    WiFiClient newClient=hapServer->available();     // get new client
+  if(newClient=hapServer->available()){              // found new client
     
     int socket=newClient.fd()-LWIP_SOCKET_OFFSET;    // get socket number (starting at zero)
     
@@ -263,6 +263,8 @@ void Span::pollTask() {
       else if(hap[i]->isConnected){                                     // if client is not connected, but HAPClient thinks it is
         LOG1("** Client #%d DISCONNECTED (%lu sec)\n",i,millis()/1000);
         hap[i]->isConnected=false; 
+        hap[i]->client.stop();
+        delay(1);     
       }
     }
   }