Changelog for version b6.8 on the experimental branch

General:
- Pynn now terraforms to Iron Hill
- Daeg now terraforms to Rock Soil
- Nyd now terraforms to Forest
- Ur now terraforms to Fertile Soil
- Halved the droprate of runes
- Added missing sound for Vegetable Farm interaction.
- Added missing sound for Hops Farm interaction.
- The game now pauses if a story dialogue opens and unpauses as the dialogue is finished.

Mission 11:
- Increased the burning duration of buildings from 60 seconds to 120 seconds.

Bugs:
- Some visual effects were not restarted correctly after being returned to the effect pool

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