CSP1150 A1: fixed comments, javadocs, mandelbrot image works but isnt repainting, fix it
CSP1150 A1: mandelbrot calc now occurs when button is clicked rather than when frame is initialised, image still not repainting.
CSP1150 A1: images now revalidating and repainting.
CSP1150 A1: colour image now works.
Merge branch 'rewrite'