- Make everything const by default.

- Remove setMeshInstance method from RequestData class.

- Remove delay(50) and WiFi.disconnect() from setup() in the examples since those statements do not seem to have an effect any longer.

- Improve documentation.

libraries/ESP8266WiFiMesh/examples/HelloMesh/HelloMesh.ino

@@ -122,13 +122,6 @@ void setup() {
   WiFi.persistent(false);
 
   Serial.begin(115200);
-  delay(50); // Wait for Serial.
-
-  //yield(); // Use this if you don't want to wait for Serial, but not with the ESP-NOW backend (yield() causes crashes with ESP-NOW).
-
-  // The WiFi.disconnect() ensures that the WiFi is working correctly. If this is not done before receiving WiFi connections,
-  // those WiFi connections will take a long time to make or sometimes will not work at all.
-  WiFi.disconnect();
 
   Serial.println();
   Serial.println();