+Python module for creating a Waverose - an adapted windrose, expects two Numpy arrays to be passed.
+One array for the values which will be represent in the binned colours ( typically significant wave height or wave power ). The second array being the corresponding directions in degrees.
+By default radial position indicates percentage of occurence within that directional bin, nsectors defines directional binning, colour bin values can be passed on call.
+Windrose moduel adapted from windrose.py - http://sourceforge.net/projects/windrose/