Changelog:
- Added gamepad support
- Added new gamemode "dungeon":
  - Added Level generation
  - Added new enemies: Spider, Small Spider
  - Added new creature: Frozen [guy]
  - Added new structures: Elevator, Chest, Container
  - Added inventory and items: Byte leg, Ice, Screw, Cell

!NOTE! Arena gamemode is not supported any more.
There is no gamepad controls and no new enemies.