Factor out bombs management to Detonator class
Remove println from Tile::plantBomb
Merge pull request #12 from BombasticOctocat/gs-detonator

Detonator class
DeathDetector
Safe entry point for hero
Added killed.fxml and implemented rendering dead body
Merge pull request #13 from BombasticOctocat/gs-death

DeathDetector
add moving goombas of one type