updated Sepia filter and tests
split ColorPack into RGB and HSV filters.  updated tests
removed HSV hueShift attribute because it's not techncially needed.  cleaned up other filter docs
continued cleaning up filter docs
got the convolve filters working, but we still need to do some work on them
changed Levels filter to Posterize
removed convolve pack.  Added pixastic emboss filter
added pixastic Solarize filter
added another hsv test
Made enhance filter tweenable (-1=grey;0=no change;1=max enhancement)