set PCL Version in ros_pcl
adapted to https://github.com/PointCloudLibrary/pcl/wiki/Remove-ROS
merge hydro-devel:pcl_ros/ in groovy-unstable-devel
Enable compile testing, pcl version update
Test for Travis
Merge pull request #36 from MichaelKorn/groovy-unstable-devel

Groovy unstable devel update