Levels update
- Changed the layout around 3-17 in w3 so that it's less likely to fall into an incorrect solution when clearing w3.
- Changed the layout around 5-14 in w5 so that you can see where it is before you reach it.
- Adjusted 5-14, 5-15 and 8-8 for difficulty.
- Adjusted 7-19, 9-5 and 0-20 for appearance.
Other changes
- Fixed a bug related to resetting, which occurs under certain conditions, mainly in w9.