- Reworked the in game documentation:
- Docs windows can now be added like code windows.
- Docs windows can now be closed and minimized like code windows.
- All windows can now be resized.
- Docs pages can now have inline links.
- Many changes and additions to the documentation texts.
- The game now keeps a few backups of your save files in case of file corruption.
- Added safeguard error message for forgetting the () after a function call.
- Added safeguard error message for shadowing variables.
- Added setting to disable warnings.
- Dicts can now be copied with `dict()`.
- `set_farm_size` now resets the drone position.
- Identifiers can now start with an underscore.

Fixes:
- Graphics setting no longer messes up the frame setting.
- # inside strings now has correct syntax coloring.
- `get_time` now gets unlocked by `Benchmark` instead of `Senses`.
- `print` and `quick_print` now return `None`.
- Sets and dicts now throw an error if you try change their size during iteration.
- `swap` no longer makes a sound when it doesn't work.
- Using `+=` on an undefined variable now gives the right error message.
- Fixed the error messages of `max` and `min`.
- Harvesting pumpkins before they are grown now destroys them like other plants.
- Fixed problem when calling `pop()` without arguments.
- Polyculture on 3x3 can no longer make a tile it's own companion.
- `list + []` now takes `len(list)` operations.
- `Items.Piggy` no longer shows up when iterating all items.
- The unlock button is no longer unclickable on very wide windows.