rtt_rosnode: added spin activity
rtt_rosnode: prevent link ambiguities if the same message name is used
by multiple packages

Signed-off-by: Johannes Meyer <meyer@fsr.tu-darmstadt.de>
Revert "rtt_rosnode: added spin activity"
a spin activity is non-sense, as messages are not processed with real-time priority even when using a ORO_SCHED_RT activity

This reverts commit 43a6dd1490c68a8a1d6c886acca3126d09a4d049.
rtt_rosnode: moved implementation of ros_publish_activity from header to source
rtt_rosnode: use RTT::internal::ConnFactory::buildDataStorage() to buffer message data in RosSubChannelElement
rtt_rosnode: moved set and add_definitions commands to ros_generate_rtt_typekit to not influence other targets built in the same project when including GenerateRTTtypekit.cmake
Signed-off-by: Johannes Meyer <meyer@fsr.tu-darmstadt.de>
Merge remote-tracking branch 'kuleuven/master'
rtt_rosnode: fixed segfault when creating streams for ports without a DataFlowInterface
rtt_rosnode: fixed segfault when creating streams for ports without a
DataFlowInterface
Merge branch 'master' of https://hector.gkmm.informatik.tu-darmstadt.de/git/rtt_ros_integration
Merge branch 'master' of http://git.mech.kuleuven.be/robotics/rtt_ros_integration

Conflicts:
	rtt_rosnode/src/ros_msg_transporter.hpp
	rtt_rosnode/src/ros_publish_activity.hpp
fixed merge errors
rtt_rosnode: fixed segfault when creating streams for ports without a DataFlowInterface
rtt_rosnode: moved implementation of ros_publish_activity from header to source
rtt_rosnode: moved set and add_definitions commands to ros_generate_rtt_typekit to not influence other targets built in the same project when including GenerateRTTtypekit.cmake
Merge commit '2adb7ef': reorganized patches for submission tu upstream (kuleuven)
Merge branch 'master' of http://git.mech.kuleuven.be/robotics/rtt_ros_integration
Merge branch 'master' of http://git.mech.kuleuven.be/robotics/rtt_ros_integration
rtt_rosnode: link with ROS libraries from the manifest
Merge branch 'master' of http://git.mech.kuleuven.be/robotics/rtt_ros_integration