CHANGELOG

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    ===  TO DO  ==================================================================
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        Support application mode with reading and writing of images?

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    ===  CHANGE LOG  =============================================================
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    ### 0.83 ###
    ### 0.83 ###
    - added adjustable pencil size for drawing in realspace

    ### 0.82 ###
    - improved image loading code in DataManager using a Java TechTip

    ### 0.81 ###
    - moved Patterson function to real space side
    - added function to construct repeating lattice from unit cell
    - tried doing intensities for recip space display, rather than Fs.
      It's more "correct" but because of the wider range, detail is lost.
      I prefer mapping the Fs directly to brightness for learning purposes.
    - made image replication higher-quality for lattice construction
    - allow applet to load images from PARAMs named img, img0, img1, img2, etc.

    ### 0.01 ###
    - wrote 3 generations of applet using FFT