Fix hard coded absolute reference in setup.py
Fix hard coded absolute reference in setup.py

richardghirst/rpi_ws281x,willowcheng/makerthings-neopixels,weidnerm/pi-ws2812,raspberry-node/rpi_ws281x,plan44/rpi_ws281x,Margravegit/rainbowraceway,plan44/rpi_ws281x,mludvig/rpi_ws281x,mludvig/rpi_ws281x,plan44/rpi_ws281x,jgarff/rpi_ws281x,raspberry-node/rpi_ws281x,beyondscreen/rpi_ws281x,thejpster/rpi_ws281x,jgarff/rpi_ws281x,thejpster/rpi_ws281x,Thor77/rpi_ws281x,weidnerm/pi-ws2812,weidnerm/pi-ws2812,weidnerm/pi-ws2812,euang/rpi_ws281x,euang/rpi_ws281x,piers7/rpi_ws281x,tykune21/rpi_ws281x,euang/rpi_ws281x,Thor77/rpi_ws281x,Margravegit/rainbowraceway,Thor77/rpi_ws281x,tykune21/rpi_ws281x,mludvig/rpi_ws281x,richardghirst/rpi_ws281x,piers7/rpi_ws281x,weidnerm/pi-ws2812,willowcheng/makerthings-neopixels,piers7/rpi_ws281x,Margravegit/rainbowraceway,jgarff/rpi_ws281x,beyondscreen/rpi_ws281x,piers7/rpi_ws281x,thejpster/rpi_ws281x,tykune21/rpi_ws281x,willowcheng/makerthings-neopixels,richardghirst/rpi_ws281x,raspberry-node/rpi_ws281x