regenerate all exercise and example posts with new format

[shiffman]

pde-files: 
  -
    url: /code/LearningProcessing/chp09_arrays/example_09_10_array_interactive_objects/example_09_10_array_interactive_objects.pde
    github: pathtogithub
  - 
    url: /code/LearningProcessing/chp09_arrays/example_09_10_array_interactive_objects/Stripe.pde
    github: pathtogithub
    label: sketch-2
js-files: 
  -  
    url: /code/LearningProcessing-p5.js/chp09_arrays/example_09_10_array_interactive_objects/sketch.js
    github: pathtogithub
  - 
    url: /code/LearningProcessing-p5.js/chp09_arrays/example_09_10_array_interactive_objects/stripe.js
    github: pathtogithub

[shiffman]

note to self: when it's one file the path to github can be direct to file otherwise just directory? In theory it would point to whichever "tab" is currently open but that is probably overkill.

[shiffman]

This is now complete.