Update Mutant script
New features:
- Custom achievements in stats screen
- Replace health graph with score graph
- Ranking based on score
- Improved localization support
- Improved mission text
- Show messages on scoring
f3e903ace2d3
Make hedgewars frontend not change scheme/weps to Default if script cfg doesn't match a known scheme. That is, will leave on whatever is selected. Also set a bunch of schemes where we don't care what the scheme/weps are to *