xserver-common: start Xsession when starting Xserver

* since this commit
  commit 305038f932fbcb39f3bb6698f8fad18172c30962
  Author: Jonathan Liu <net147@gmail.com>
  Date:   Wed Jun 12 08:30:15 2013 +0000
    xserver-nodm-init: do not execute Xsession twice

  xserver-nodm-init wasn't working correctly when it was used together
  with xserver-common which doesn't start Xsession from Xserver (unlike
  x11-common in oe-core).

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
libao add missing plugin to packages list

Signed-off-by: Patrick Patat <patrick.patat@innotis.org>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
libsdl2-mixer: add recipe

Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
gnome-disk-utility: create an extra package for gdu libraries

In some environments only libraries are required and the deamon
started at X-session is an unusused feature.

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
tcpreplay:add recipe

*tcpreplay - a suite of GPLv3 licensed tools for UNIX operating
systems which gives you the ability to use previously captured traffic
in libpcap format to test a variety of network devices.

Signed-off-by: Zongchun Yu <Zongchun.Yu@freescale.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
log4cplus: Fix LIC_FILES_CHKSUM

* was probably broken since it was added in:
  commit a506a9efc86cda9dbf36cd916dbbfb1ae2162c45
  Author: Maxin B. John <maxin.john@enea.com>
  Date:   Tue Aug 27 07:55:14 2013 +0000
  Subject: log4cplus: add recipe

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
recipes: Remove PR = r0 from all recipes

* Remove all PR = "r0" from all .bb files in meta-oe repo. This was done
  with the command sed -e '/^PR.*=.*r0\"/d' meta*/recipes*/*/*.bb -i

* We've switching to the PR server, PR bumps are no longer needed and
  this saves people either accidentally bumping them or forgetting to
  remove the lines (r0 is the default anyway).

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>