Support for RGB leds only

first stable version supports RGB ws2812 leds, works with Raspbian Wheezy (Debian 7) and Raspberry pi 1 (A,A+,B,B+)

For Raspbian Jessie you need to edit /boot/config.txt and comment dtparam=audio=on
like:

#Enable audio (loads snd_bcm2835)
#dtparam=audio=on