- docs: added detailed docs on restepper and sidestepper
- re/sidestepper: command inovations are safer
- re/sidestepper: option to automatically install dependencies
- sidestepper: behaviour is now correct + multiprocessing option
- restepper: rely on sidestepper for a few functions
- restepper: multithreaded repo duplication
- restepper: chunk filtering into a single command
