Test button to display sather_gate image
Allow cropping of images
Add/remove files
Add Darkcoin image
Allow image to retain aspect ratio
Use promise from animate function
Begin modular, slide-unique css
Colons causing problems
Cosmetic changes
Add default parameter values
Default CSS implemented in customization function
Get info from slides
Basic properties and animations
Seamless animations complete!
Custom animation time
Removed main-wrapper, added marketer, percussionist
Change .main-display height to 45vw
Fixed lack of periods in identifiers
Changed customization to return statements

It's easy to forget the "break;" clause, which will result in the wrong
css properties being applied
Marketer customization