EEPROM Flashing Improvements

[thorrak]

Suggestions from Meza on HBT to improve EEPROM flashing support:

• This message could do with a hyperlink to the part of Fermentrack where you can reset the EEPROM: "Failed to write the configuration to the controller. If this continues, try resetting the EEPROM on the controller"

• The docs need something about eeprom reset in them

• The Wifi reset BIN should be flagged up in the docs as a good first step if you are using an ESP8266 which is not brand new, or need to reset your wifi settings. I only stumbled across that later on.

• Need to recheck what is happening with flashing/zeroing out existing devices. To quote: "Any idea why my controller did not work until I flashed it through windows? Is there an issue flashing from Fermentrack on Raspberry Pi? All the flash logs in Fermentrack show successful flashing for me (I can provide these if it helps)"

• A way to blank-flash the module could be useful in setting up too, if that would be possible from Fermentrack.