Changes in version 0.1.6                        

  - su_gfr_elems() Replaced a non-ASCII character (that was causing a
    warning on r-universe) with its unicode representation

                        Changes in version 0.1.5                        

  - su_img_maketrans() Fixed a bug whereby 256-color indexed PNG files
    (which PowerPoint will use when saving slides to PNG) would not
    become transparent
  - added fairy-godmother-shrek2 as a meme

                        Changes in version 0.1.4                        

  - added fireworks animated GIF meme
  - su_meme(): height argument can now be 'default' (no resize,
    recommended for animated GIFs)

                        Changes in version 0.1.3                        

  - fixed a typo in gfs-report.Rmd

                        Changes in version 0.1.2                        

  - su_meme(): fixed a typo in the code that would cause an error

                        Changes in version 0.1.1                        

  - su_tips(): new function to create small HTML files for exercise tips
    and solutions
  - package dependencies updated

                        Changes in version 0.1.0                        

  - Initial version. These functions have been split off from
    wkrshoputils