Reorder game flag buttons
The buttons are now (roughly) ordered like this:
line 1: landscape
line 2: environment
line 3: hedgehog life
line 4: weapons
line 5: gameplay
Update Rope-Knocking Challenge
- Fix challenge being stuck when leftmost hog drowns
- Display custom taunts for knocked hogs
- Stats screen now shows the actual relevant facts
- Add simple scoring system
- Minor message changes
- More translation-friendly strings