-updated wavFile with some util methods
-created a wrapper for com.sun.media.sound.FFT , implemented a way to get magnitudes there.
-added a bunch of utility methods to spectrogram, need to clean it up a bit.
-Wav test and driver have been updated with new experiments.
-went through and delted alot of printlines for debuging.
-updated wavFile with small changes to formating
-Fastft cleaned it up a bit
-Spectrogram: cleaned it up a bit.
-Wav test: update for demo
Test data: added a out folder for spectrogram output and added some more testedata.