#ESP8266 I2S WS2812 Driver with optional DMX512

Modified version of ESP8266 WS2812 driver https://github.com/cnlohr/esp8266ws2812i2s Really this should have been a fork but I am new to github

Lots of hacking here, do not try and use.

Changes from Charles Lohr oroginal code:

	2nd LED (Green of first pixel) flashes and all other LEDs are off after 4 seconds of no UDP data reception

	Added optional DMX512 transmit on GPIO2 (untested)



Todo:
	rename last_leds to just 'leds' or even 'lights'
	Work out how web front end works, add new variables in a "Light Settings" Tab
	Do the variables need to go inside UserData ?


Bugs:
	When going idle the last_leds array seems to have crap in it