Bump version in Arduino and fix compilation erros

Author: me-no-dev

examples/ClientServer/Client/Client.ino

@@ -25,7 +25,7 @@ static void replyToServer(void* arg) {
 /* event callbacks */
 static void handleData(void* arg, AsyncClient* client, void *data, size_t len) {
 	Serial.printf("\n data received from %s \n", client->remoteIP().toString().c_str());
-	Serial.write((char*)data, len);
+	Serial.write((uint8_t*)data, len);
 
 	os_timer_arm(&intervalTimer, 2000, true); // schedule for reply to server at next 2s
 }

examples/ClientServer/Server/Server.ino

@@ -16,7 +16,7 @@ static void handleError(void* arg, AsyncClient* client, int8_t error) {
 
 static void handleData(void* arg, AsyncClient* client, void *data, size_t len) {
 	Serial.printf("\n data received from client %s \n", client->remoteIP().toString().c_str());
-	Serial.write((char*)data, len);
+	Serial.write((uint8_t*)data, len);
 
 	// reply to client
 	if (client->space() > 32 && client->canSend()) {

library.properties

@@ -1,5 +1,5 @@
 name=ESP AsyncTCP
-version=1.1.0
+version=1.2.0
 author=Me-No-Dev
 maintainer=Me-No-Dev
 sentence=Async TCP Library for ESP8266 and ESP31B