Podbit Cache Update

Quite a large update to podbit I'm rather proud of. This time, podbit will now delete podcasts which you haven't played for three days or more, to stop them taking up too much disk space.

Site: https://ethanjmarshall.co.uk GitHub: https://github.com/ethanv2 Twitter: /dev/null ... https://www.youtube.com/watch?v=ytKWEXLcNRQ