"angle2north" method sets directions counter-clockwise?

@mostaphaRoudsari, @chriswmackey 
Is there a reason why "angle2north" method from Ladybug_ladybug.py file sets the directions orientation counter-clockwise?
I think the directions orientation should be clockwise (example: west should be 270 degrees, not 90):
http://en.wikipedia.org/wiki/Compass_rose