Added at_server_start() and at_server_stop() hooks to allow users to safely initialize their custom systems whenever the server restarts.

game/gamesrc/conf/at_server_startstop.py

@@ -0,0 +1,30 @@
+"""
+This module contains functions that are imported and called by the
+server whenever it changes its running status. At the point these
+functions are run, all applicable hooks on individual objects have
+already been executed. The main purpose of this is module is to have a
+safe place to initialize eventual custom modules that your game needs
+to start up or load.
+
+The module should define at least these global functions: 
+
+at_server_start() 
+at_server_stop() 
+
+The module used is defined by settings.AT_SERVER_STARTSTOP_MODULE.
+
+"""
+
+def at_server_start():
+    """
+    This is called every time the server starts up (also after a
+    reload or reset).
+    """
+    pass
+
+def at_server_stop():
+    """
+    This is called just before a server is shut down, reloaded or
+    reset.
+    """
+    pass