A work-in-progress ImageMagick script to convert a bunch of images into an animation.

Currently allows you to:
- create intermediate copies for further processing,
- trim frames by selecting every nth frame,
- specify delays,
- set animation dimensions,
- skip existing files,
- specify a frame range
- create a back-to-front animation which reverses at the end of the animation
- skip the normal animation
- specify a base path