Unofficial Development Kit for Espressif ESP8266 v2.0.6

• Update SDK v1.1.1 (folder ESP8266_SDK);
• SDK version 1.1.0 moved to a folder ESP8266_SDK_110;
• SDK version 1.0.1 moved to a folder ESP8266_SDK_101;
• Update a utility "utils\esptool.exe";
  • Added patch: write_flash: Show actual flash write speed.
  • Add optional '--entry-symbol' option to override entry point symbol name.
  • Fixed wrong size erase region for recording (Patch by Viktor aka pvvx).
  • Fixed creation of superfluous segments for the loader, if the no data in segments rodata and etc (Patch by Viktor aka pvvx).
• Update a utility "utils\esptool-ck.exe" to version 0.4.5:
• Updated documentation:
  • Delete files:
    • 2C-ESP8266__SDK__Programming Guide__EN_v1.0.1.pdf
  • Added files:
    • 2C-ESP8266__SDK__Programming Guide__EN_v1.1.1.pdf
• Updated examples:
  ESPWebFramework;
  dht22_thingspeak;
  esphttpd;