[contrail/contrail-utils] Install dns utils scripts

Refs:
  https://review.opencontrail.org/#/c/344/
  https://review.opencontrail.org/#/c/345/

Change-Id: Ibaa8a1e82d9e773283b123e9507cbfd37b2ec1ed
[upstart] Add pidfile on all daemons

Change-Id: I7d863bd18193f4c71b051a6be088de4e2f1667bd
[ifmap-server] Update {owner,group}ship for ifmap config

Mentioned by Edouard, the publisher.properties config must be writeable
by the irond user (contrail).

Change-Id: I618d2b403a4e7dce2034216128e2e16a6e111c35
debian maintainer script refactoring

This commit handle a little bug on packages un-install (if two contrail
package are installed on the same node).
Install and remove are now also standardized, and a missing rm script for
contrail-dns was added.

Change-Id: I57181aa3f36e67d8d6778ce31bdf3cc366f8dbbc
[contrail-vrouter] Fix recommends package

kernel-image-$(uname -r) doesn't exist, the correct package name is
linux-image-$(uname -r).

Change-Id: I9bcdcf88f1c545a6cba0ee557c6f9c3b2646e194
Merge "[contrail/contrail-utils] Install dns utils scripts"
Merge "[upstart] Add pidfile on all daemons"
Merge "[contrail-vrouter] Fix recommends package"
Merge "debian maintainer script refactoring"
Merge "[ifmap-server] Update {owner,group}ship for ifmap config"
Change name of daemon vnswad to contrail-vrouter-agent

Change-Id: Ic54aaecab17b5ae2c6dc26f5ff57e8619c56f78c
Merge "Change name of daemon vnswad to contrail-vrouter-agent"
readme file