Load the NPC and warp JSON files according to the config file.

NPC data was being read from the config, but ignored.

config.ini

@@ -23,6 +23,8 @@ view=20000
 motd=Welcome to OpenFusion!
 # NPC json data
 npcdata=NPCs.json
+# warp target json data
+warpdata=warps.json
 
 # spawn coordinates (Z is height)
 # the supplied defaults are at City Hall