Feature/organization

Well, @Tyilo, I decided to perform some housekeeping on the project for the sake of tidiness:

1. I've organized related files into subfolders to clean up the project root
2. I've renamed the utility scripts to be less ambiguous, and I've renamed the AppleScripts to follow the same naming convention (all lowercase, with dashes separating words)
3. I've updated the export script to copy over images before exporting the workflow

Thoughts?