(svn r23613) -Add: allow IsDeveloperOnly in info.nut, to indicate if you can select this GS via the GUI (optional, defaults to false)

src/script/api/script_info_docs.hpp

@@ -129,6 +129,19 @@ public:
 	 */
 	bool UseAsRandomAI();
 
+	/**
+	 * Can a non-developer select Script for a new game.
+	 *
+	 * The idea behind this function is to 'forbid' using your script with a new
+	 *  game if you for example specificly wrote it for a certain scenario.
+	 *
+	 * @return True if the Script can be selected from the GUI as non-developer.
+	 * @note This function is optional. Default is false.
+	 *
+	 * @api -ai
+	 */
+	bool IsDeveloperOnly();
+
 	/**
 	 * Gets the name of main class of the Script so OpenTTD knows
 	 * what class to instantiate.