- added pullup resistors for GPIO0 & CH_PD
- silkscreen of 4&5 changed
- silkscreen of ftdi pinout added
- bug: pins 4&5 switched - silkscreen of the modules lines up, but not working in SW See adafruit's huzzah: https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/using-nodemcu-lua
- smt switch, which one from farnell?
- power led & resistor