Sync syslog-ng 3.5.1-1 (universe) from Debian unstable (main)

Please sync syslog-ng 3.5.1-1 (universe) from Debian unstable (main)

Explanation of the Ubuntu delta and why it can be dropped:
  * Merge from Debian unstable. (LP: #1205125) Remaining changes:
   - debian/control: remove libsystemd-daemon-dev build-depends
   - debian/rules: remove --with-systemdsystemunitdir from
     override_dh_auto_configure.

Since libsystemd-daemon-dev exists in Ubuntu archive, delta can be dropped.

Changelog entries since current trusty version 3.3.9-1ubuntu1:

syslog-ng (3.5.1-1) unstable; urgency=low

  [ Gergely Nagy <email address hidden> ]
  * New upstream release.
    + Support auto-loading modules (Closes: #650814)
    + The SMTP module is available in syslog-ng-mod-smtp (Closes: #722746)
    + New modules: amqp, geoip, stomp, redis and smtp.
    + Multi-line input support (indented multiline and regexp-based)
    + Template type hinting for the MongoDB destination and $(format-json)
    + Support for unit suffixes in the configuration file
    + New filters, template functions and other miscellaneous changes
  * New (team) maintainer, Laszlo Boszormenyi, Attila Szalay and myself
    added to Uploaders.
  * Ship /var/lib/syslog-ng in the syslog-ng-core package, instead of
    creating it in the init script. Thanks Michael Biebl
    <email address hidden> for the report & assistance. (Closes: #699942, #719910)
  * Use dh-systemd for proper systemd-related maintainer scripts. Based on
    a patch by Michael Biebl <email address hidden>. (Closes: #713982,
    #690067)
  * Do not wait for syslog-ng to settle down during installation / update.
    This also fixes installing via debootstrap and a fake
    start-stop-daemon. (Closes: #714254)

 -- Gergely Nagy <email address hidden> Mon, 04 Nov 2013 15:27:37 +0100