CMakeLists fix to fit with OpenEmbedded/Yocto meta-ros layer.

Increase the compatibility of the ros_control code with
meta-ros, an OpenEmbedded/Yocto layer that provides recipes for ROS
packages disabling catking checking the variable CATKIN_ENABLE_TESTING.
Create README.md
Update README.md
Added the EffortJointSaturationHandle and EffortJointSaturationInterface
classes. They are used with joints that do not have soft limits specified in
their URDF files.
Merge pull request #116 from jim-rothrock/hydro-devel

Added support for joints without soft limits.
Merge pull request #114 from vmayoral/hydro-devel

CMakeLists fix to fit with OpenEmbedded/Yocto meta-ros layer.
Renamed manifest.xml to prevent conflicts with rosdep
Extended wait time to 30 seconds for slower computers
Merge pull request #121 from pal-robotics/hydro-devel

Fixes for next minor release
Merge branch 'hydro-devel' into extended_wait_time
Fixed additional timeout that was just added
Merge pull request #120 from ros-controls/extended_wait_time

Extended wait time to 30 seconds for slower computers
Merge pull request #118 from ros-controls/no_manifest_xml

Renamed manifest.xml to prevent conflicts with rosdep
Updated changelogs
"0.5.8"