Update Ketai library URL.

Author: prisonerjohn

contrib_generate/sources.conf

@@ -112,7 +112,7 @@
 024 \ https://github.com/firmata/processing/releases/download/latest/processing-arduino.txt
 028 \ http://projects.formatlos.de/ambientlightsensor/download/AmbientLightSensor.txt
 # 064 \ http://www.muvium.com/frappuccino/frappuccino.txt
-066 \ http://ketailibrary.org/ketai.txt
+066 \ http://ketai.org/ketai.txt
 071 \ http://motscousus.com/stuff/2011-01_dmxP512/dmxP512.txt
 090 \ https://dl.dropbox.com/u/87680069/LeapMotion.txt
 # 102 \ http://s176381904.onlinehome.fr/processing/MoveLib/download/MoveLib.txt