* NEW: Implemented the per-player map limit.
* NEW: Implemented the global map limit.
* NEW: The map manager can now raise exceptions for some requests.
* NEW: The configuration can now have deprecated field names.
These fields are automatically migrated if present in the config file.
* NEW: The configuration now writes default values when loading the plugin.
* BUG: Fixed configuration loading.
* BUG: Fixed player store loading's thread-safety.
* OPT: Cleaned up map loading events initialisation.