GitLab

* Added HTTPUpdate class for downloading sketches from a server

* Added HTTPUpdate class for downloading sketches from a server

* Added HTTPUpdate to CMakeLists.txt

* Change ESP8266 class references to ESP32 for httpUpdate.ino example

* Change ESP8266 class references to ESP32 for httpUpdate.ino example. setLedPin() commented out because not all boards support LED_BUITLIN

* Added check to handle mixup of old and present api properly

* Correct HTTPClient::setTimeout() to convert milliseconds to seconds. Correct WiFiClient::setTimeout() to call Stream::setTimeout() with seconds converted back to milliseconds. Remove inproper checks for _insecure.

* Added small comment because it looked like the Travis build did not finish