Some necessary changes to build meta-ros with the current master 

This commit resolves issue #393.

catkin: patch _setup_util.py.in to address #384

Some hotfixes due to changes on the oe-core master branch

The svn version of log4cxx does not require the previous patches
and hence, they are dropped.

This patch fixes the continuous integration test by dropping
the sound-play recipe from ros-world, as it would fail with
the master branches (addresses issue #388).

https://github.com/bmwcarit/meta-ros/issues/388

In _setup_util.py.in, we use python provided by environment instead of
the generated one, as the generated python path can be arbitrarily long
(depending on the location of the build directory), and hence reaches
the shebang line limit, causing the script to fail at start-up.

The catkin developers changed the cmake-generated template _setup_util.py
to use @PYTHON_EXECUTABLE@ instead of /usr/bin/env python in changeset
bf12b40c2 [1]. We revert this change here to address the issue #384 [2].

[1] https://github.com/ros/catkin/commit/bf12b40c2a93b11c3666619a474d35bcfea20837
[2] https://github.com/bmwcarit/meta-ros/issues/384



Signed-off-by: Lukas Bulwahn <lukas.bulwahn@oss.bmw-carit.de>