Spooky halloween fixes!

Here is a quick patch that was requested by a new player.

• When you kill a pirate who boarded your ship, you are now able to loot him/her. So far, it was not possible to loot defeated enemies on your own ship.

• When you board an enemy vessel, enemy crew members who are idling will attack you.

• When you try to harvest a resource or grab an item and your inventory is full, the character will not try to grab it. Instead, a message is displayed to inform you about the filled inventory.

• Moving the camera with arrow keys or WASD is now smoother.