Implemented unpause countdown and delay.
Fixed a bug that sometimes occured when pausing sound.
Fixed a bug that shooting an automatically hidden animal caused an error trying to remove it twice.
Changed behavior of the loaded tractor - now the wood disappears when the tractor is shot.
The points for shot animals are now displayed above all other layers.
Now the block of woods is shown under the tractor.
Fixed a bug in PIXI - EventTarget#dispatchEvent.
Now the paths can be occupied and only a single animal can be on an occupied path.
Fixed a bug that caused the block of woods not to disappear when the tractor was shot.
Corrected vehicle paths.