Made minor edits to the xml level data. Also greatly improved data visualization class so that it now draws lines between a barcode dot and its parents. Wrote funtions to map dataVis ellipse y values according to the minimum and maximum values of all other barcodes that have existed. This still needs work and is not totally functional. Created Ball class but have not implemented it. This will contain the methods and parameters assosciated with the dataVis like mouseover and shake etc. and will eventually replace the ellipses.