- updated Changelog.txt
- updated Changelog.txt

Gfans/PositionBasedDynamics,InteractiveComputerGraphics/PositionBasedDynamics,janbender/PositionBasedDynamics,janbender/PositionBasedDynamics,InteractiveComputerGraphics/PositionBasedDynamics,Gfans/PositionBasedDynamics,InteractiveComputerGraphics/PositionBasedDynamics