Fixes for blr_salve performanc issues, linking of embedded library,

housekeeper heartbeat addition and unloading of modules to allow
profiling of modules using LD_PROFILE environment variable and sprof

server/core/load_utils.c

@@ -332,6 +332,21 @@ MODULES	*ptr;
 	free(mod);
 }
 
+/**
+ * Unload all modules
+ *
+ * Remove all the modules from the system, called during shutdown
+ * to allow termination hooks to be called.
+ */
+void
+unload_all_modules()
+{
+	while (registered)
+	{
+		unregister_module(registered->module);
+	}
+}
+
 /**
  * Print Modules
  *