Another mostly bug fix release.

• The hidden room count now does not count the same room twice.
• When you die and respawn, the key count appears again.
• The key count is shown when touching the golden door.
• Touching the golden door does not stop the music anymore.
• Made the final boss room more inconvenient to move around.
• Made the Sword Card not do quite as much extra damage to bosses.
• Prevent crash if picking up items before they fully appear.