- move async activation into the server
- implement async queues

diff --git a/server/timer.c b/server/timer.c
index fd9604a..90e1f32 100644
--- a/server/timer.c
+++ b/server/timer.c
@@ -45,6 +45,7 @@
     no_get_fd,                 /* get_fd */
     no_flush,                  /* flush */
     no_get_file_info,          /* get_file_info */
+    NULL,                      /* queue_async */
     timer_destroy              /* destroy */
 };