New levels! (v1.16)

I've just uploaded windows/linux/mac builds v1.16 that will bring two new levels to the game!

• New level 'flatpack.'

• New level 'vault.'

• Fixed the loud sound at first start of a level.

• Fixed a small memory leak.

• Improved the behaviour of dirt particles in a dozer-bucket / excavator- bucket: they are less bouncy, and will stay in the bucket much better when driving.

• Tuned dirt versus dirt collisions.

Enjoy!

Bram Stolk