Use "mysql" instead of "$mysql" in LSB headers.

"$mysql" doesn't work as intentend - mediator will be installed
in /etc/rc*.d/S03mediator, whereas it should be installed as
/etc/rc*.d/S04mediator. After adjusting the line *manually*
you've to invoke "insserv", jftr.

From: Michael Prokop <mprokop@sipwise.com>

debian/mediator.init

@@ -1,8 +1,8 @@
 #! /bin/sh
 ### BEGIN INIT INFO
 # Provides:          mediator
-# Required-Start:    $remote_fs $syslog $mysql
-# Required-Stop:     $remote_fs $syslog $mysql
+# Required-Start:    $remote_fs $syslog mysql
+# Required-Stop:     $remote_fs $syslog mysql
 # Default-Start:     2 3 4 5
 # Default-Stop:      0 1 6
 # Short-Description: Ngcp Mediator