Persistent World Map

• World map maintains current zoom and pan when closing and reopening it.
• Opened world map automatically switches to new zone when entering it;
  unless you have not been looking at the current zone when the zone change happend.
• Optionally, automatically keep the player arrow in the center of the zoomed-in map.
• "Re-center Map" button to return to the current zone map.

New demo video:

Older demo video: