Add boot-services milestone marker for boot; fixed udev-addon init time.

dbus.conf

 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # dbus
 #
 # Does some required setup and then starts the D-Bus daemon.
 #
 
-start on runlevel 2
+start on starting boot-services
 respawn
 
 # Sets up the D-Bus environment.
 pre-start script
   mkdir -p /var/run/dbus
   chown messagebus.messagebus /var/run/dbus
   mkdir -p /var/lib/dbus
 
   #
   # The following ensures that there is a valid machine-id for dbus.  Just
@@ skipping 15 matching lines @@
 
 expect fork
 exec /usr/bin/dbus-daemon --system --fork
 
 # The post-stop script will clean up after d-dbus. It's better to put this
 # here rather than in pre-start since post-stop is always guaranteed to run
 # while pre-start can exit pre-maturely.
 post-stop script
   rm -rf /var/run/dbus
 end script