Main contribution by William (pull request #174) with minor
adjustments by Lukas Bulwahn.

many recipe contributions, updates and minor clean-up

The ros-control recipes are updated to 0.5.8 to be in line with
https://github.com/ros/rosdistro/blob/74f48fa69eeb1cb1d69f2d2f694cdf2fdfc9b40a/hydro/release.yaml.
The applied patches are merged upstream in 0.5.8 and were removed.

The ros-tutorials recipes are updated to 0.4.2 to be in line with
https://github.com/ros/rosdistro/blob/74f48fa69eeb1cb1d69f2d2f694cdf2fdfc9b40a/hydro/release.yaml.

This commit includes all packages but depth-image-proc, which
requires the pcl library.

While adding image-geometry, the common part to cv-bridge was put
into the vision-opencv.inc file.

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

The pluginlib recipe is updated to 1.9.23 to be in line with
https://github.com/ros/rosdistro/blob/ef3a7449d7f7ef6e691a5724ef6c485e75cfd4af/hydro/release.yaml.

The cv-bridge recipe is updated to 1.10.9 to be in line with
https://github.com/ros/rosdistro/blob/ef3a7449d7f7ef6e691a5724ef6c485e75cfd4af/hydro/release.yaml.

The ros-comm recipes are updated to 1.9.50 to be in line with
https://github.com/ros/rosdistro/blob/ef3a7449d7f7ef6e691a5724ef6c485e75cfd4af/hydro/release.yaml.

The ros recipes are updated to 1.10.7 to be in line with
https://github.com/ros/rosdistro/blob/ef3a7449d7f7ef6e691a5724ef6c485e75cfd4af/hydro/release.yaml.

The catkin recipe is updated to 0.5.77 to be in line with
https://github.com/ros/rosdistro/blob/ef3a7449d7f7ef6e691a5724ef6c485e75cfd4af/hydro/release.yaml.

The ros-controllers recipes are updated to 0.5.4 to be in line with
https://github.com/ros/rosdistro/blob/5a90bb971b74bc714a1099d36aafad6d05bf68e3/hydro/release.yaml.