Lots of work on the infrastructure to link the free and gold versions (which was disabled temporary until the web backend is on).

Gameplay

• Make archers drop arrows
• Show damage for bows even if unloaded.
• Change starting wand for Arcane to the bolt wand

UI

• Added help panel
• Add bookshelves and new stone obstacles
• Change fountain sprite
• Add promo panel for Gold version (disabled)
• [Gold] Add new starting items
• Fix throw message for bandages

Fixes

• Unload weapons when ammo spent
• Set the item ammo on autopickup arrows
• Fix issues with sound activation
• Reenable disabling sound in cocoon