Update the setup instructions to reflect the use of ${ros_prefix}.

Document the specific versions of bitbake needed
Add myself to contributor list

Signed-off-by: Khem Raj <raj.khem@gmail.com>

The eigen recipe has been added to the meta-oe layer with the
name libeigen [1].

[1] http://cgit.openembedded.org/meta-openembedded/commit/?id=424e3c1b930c0103c2cedfd4df1671e84a5256d5

This commit adds the yaml-cpp recipe from the repository at
https://github.com/kartikmohta/meta-km. The file is licensed
with the MIT license
(cf. https://github.com/kartikmohta/meta-km/blob/master/LICENSE).

The original recipe can be found at
https://github.com/kartikmohta/meta-km/blob/master/recipes-devtools/yaml-cpp/yaml-cpp_0.3.0.bb

The README file acknowledges Kartik Mohta's contribution and names
him as a contributor.

This commit adds the eigen library from Kartik Mohta's OpenEmbedded
layer. Acknowledgements are added in the README file.

This commit moves the description of previous uses in a separate file,
adds the typical information for a README of an OpenEmbedded layer and
describes the usage for the roscore image recipe.

Instead of maintaining a copy of the tinyxml recipe from the meta-oe layer, we
require that the installation also includes the meta-oe layer.
We updated the README accordingly and also updated the description of the
current setup. We also updated and tuned the CONTENT file.

This commit resolves issue #45.

The recipe python-pprint rdepends on python-io. As this was not reflected in
the oe-core repository, we added the dependency in genmsg.
Now after the commit abe7bf9992e298f1b53e790eee7b064a9e4e8589 in oe-core,
we can remove the runtime dependency in genmsg.

This commit resolves issue #54.

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

This commit provides a recipe for a core image to start roscore, and
also tunes the README.

After the release of ROS groovy, there is no strong reason to
continue to work on the cross-compilation of the previous ROS
version fuerte. Hence, this commit removes the initial
non-functioning recipe and the reference in the README file.

For cross-compiling ROS fuerte, the repository at
https://github.com/yida/yida-collections


might be a better starting point anyway.

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

adjusting the README; a first try for cross-compiling the cpp-common things; extending the install-fuerte script