Add pizza parlor to mapgen
Added missing comma
Pizza parlor now spawns with regular restuauraunts
Changed pizza parlor to fast food restauraunt
Fix mapgen error message
Removed bar from source and added it to data as fast food restaurant
Update bar to have more detail
Pizza parlor and bar back as overmap terrain instead of fast-food
restaurants
Pizza parlor revealed by restaurant map
Remove bar from overmap_terrain
More specific bar item spawns
Changed pizza items a bit
Some balancing in regional_map_settings
Removed fast food restaurant from source and added it as json
Move pizza parlor overmap definition to overmap_terrain.json
Changed some benches to chairs
Less chance of poison mushroom in pizza parlor fridge
Moved bar's parking lot to front
Moved bar definition to overmap_terrain.json
remove map::traps vector and use g->traps instead
remove is_tiny, make mapsize a constructor paramter instead
remove pointless virtual modifier from map::load/save
add new spawn system
add debuging code for new spawn system
add documentation for the new spawn system
add map extra spawn group definition in json
don't need to check for existing item in map, is automatically created (and empty)
Use automatically deducted item group for death drops.

If the group exists, use it to create a item list and add those items to the map, skipping the old item drops.