Log through a GameLog autoload instead of print()

GameLog.debug() prints only in debug builds, and GameLog.warning() reports
problems such as unexpected server data or failed downloads.

players_panel.gd

@@ -41,7 +41,7 @@ func _ready() -> void:
 
 ## Shows or hides the row for adding players, and the buttons for removing them.
 func add_players() -> void:
-	print("add_players")
+	GameLog.debug("add_players")
 	Settings.edit_players = !Settings.edit_players
 	add_player_container.visible = !add_player_container.visible
 	new_player_name_field.grab_focus()
@@ -50,7 +50,7 @@ func add_players() -> void:
 ## Adds a player with the name in the name field, unless it is empty or there are
 ## already as many players as there can be.
 func add_player() -> void:
-	print("add_player")
+	GameLog.debug("add_player")
 	if new_player_name_field.text != "" && Settings.player_array.size() < Settings.MAX_NUMBER_OF_PLAYERS:
 		var new_player_object: PlayerObject = PlayerObject.new(new_player_name_field.text)
 		new_player_name_field.text = ""
@@ -62,11 +62,11 @@ func add_player() -> void:
 ## Shows the players in [code]Settings.player_array[/code] again, e.g. after their
 ## points were reset.
 func reload() -> void:
-	print("load_players")
+	GameLog.debug("load_players")
 	Settings.delete_children(players_list_container)
 	var counter: int = 0
 	for player_object: PlayerObject in Settings.player_array:
-		print(player_object.player_name)
+		GameLog.debug(player_object.player_name)
 
 		var new_player: Player = _player_row.instantiate()
 		new_player.player_object = player_object
@@ -84,7 +84,7 @@ func _on_change_character_clicked(row: Player, player_name: String) -> void:
 
 
 func _on_player_removed(player_object: PlayerObject) -> void:
-	print("_on_player_removed ", player_object.player_name)
+	GameLog.debug("_on_player_removed ", player_object.player_name)
 	Settings.player_array.erase(player_object)
 	reload()
 	player_removed.emit(player_object)