New Feature
Gzip Compression
* `States` pickle file will now be compressed in `gzip` when being accessed and closed.
* This highly reduces the size of `states.pkl` as when you have done more and more actions on `storage`, the more data will be stored in `states.pkl` in order to let users undo to the previous states.
Changes
1. Changed the date format in `show-time`, printing `item["date"]` instead of `item["time"]`.