Update IDF to aaf1239 (#1539)

* fix sdmmc config

* Fix warnings in EEPROM

from @Curclamas

* remove leftover TAG in EEPROM

* Initial add of @stickbreaker i2c

* Add log_n

* fix warnings when log is off

* i2c code clean up and reorganization

* add flags to interrupt allocator

* fix sdmmc config

* Fix warnings in EEPROM

from @Curclamas

* remove leftover TAG in EEPROM

* fix errors with latest IDF

* fix debug optimization (#1365)

incorrect optimization for debugging tick markers.

* Fix some missing BT header

* Change BTSerial log calls

* Update BLE lib

* Arduino-ESP32 release management scripted (#1515)

* Calculate an absolute path for a custom partitions table (#1452)

* * Arduino-ESP32 release management scripted
(ready-to-merge)

* * secure env for espressif/arduino-esp32

* * build tests enabled
* gitter webhook enabled

* * gitter room link fixed
* better comment

* * filepaths fixed

* BT Serial adjustments

* * don't run sketch builds & tests for tagged builds

* Return false from WiFi.hostByName() if hostname is not resolved

* Free BT Memory when BT is not used

* WIFI_MODE_NULL is not supported anymore

* Select some key examples to build with PlatformIO to save some time

* Update BLE lib

* Fixed BLE lib

* Major WiFi overhaul

- auto reconnect on connection loss now works
- moved to event groups
- some code clean up and procedure optimizations
- new methods to get a more elaborate system ststus

* Add cmake tests to travis

* Add initial AsyncUDP

* Add NetBIOS lib and fix CMake includes

* Add Initial WebServer

* Fix WebServer and examples

* travis not quiting on build fail

* Try different travis build

* Update IDF to aaf1239

* Fix WPS Example

* fix script permission and add some fail tests to sketch builder

* Add missing space in WiFiClient::write(Stream &stream)

libraries/WebServer/examples/HttpAdvancedAuth/HttpAdvancedAuth.ino

@@ -0,0 +1,59 @@
+/*
+  HTTP Advanced Authentication example
+  Created Mar 16, 2017 by Ahmed El-Sharnoby.
+  This example code is in the public domain.
+*/
+
+#include <WiFi.h>
+#include <ESPmDNS.h>
+#include <ArduinoOTA.h>
+#include <WebServer.h>
+
+const char* ssid = "........";
+const char* password = "........";
+
+WebServer server(80);
+
+const char* www_username = "admin";
+const char* www_password = "esp32";
+// allows you to set the realm of authentication Default:"Login Required"
+const char* www_realm = "Custom Auth Realm";
+// the Content of the HTML response in case of Unautherized Access Default:empty
+String authFailResponse = "Authentication Failed";
+
+void setup() {
+  Serial.begin(115200);
+  WiFi.mode(WIFI_STA);
+  WiFi.begin(ssid, password);
+  if (WiFi.waitForConnectResult() != WL_CONNECTED) {
+    Serial.println("WiFi Connect Failed! Rebooting...");
+    delay(1000);
+    ESP.restart();
+  }
+  ArduinoOTA.begin();
+
+  server.on("/", []() {
+    if (!server.authenticate(www_username, www_password))
+      //Basic Auth Method with Custom realm and Failure Response
+      //return server.requestAuthentication(BASIC_AUTH, www_realm, authFailResponse);
+      //Digest Auth Method with realm="Login Required" and empty Failure Response
+      //return server.requestAuthentication(DIGEST_AUTH);
+      //Digest Auth Method with Custom realm and empty Failure Response
+      //return server.requestAuthentication(DIGEST_AUTH, www_realm);
+      //Digest Auth Method with Custom realm and Failure Response
+    {
+      return server.requestAuthentication(DIGEST_AUTH, www_realm, authFailResponse);
+    }
+    server.send(200, "text/plain", "Login OK");
+  });
+  server.begin();
+
+  Serial.print("Open http://");
+  Serial.print(WiFi.localIP());
+  Serial.println("/ in your browser to see it working");
+}
+
+void loop() {
+  ArduinoOTA.handle();
+  server.handleClient();
+}