rtt_roscomm: some cmake patches to fix install-space only setups (using catkin_make_isolated --install)
rtt_roscomm: Install generated header files (dependent packages might need them)
rtt_roscomm: install all header files in one install command in GenerateRTTROSCommPackage.cmake.em
Merge pull request #2 from meyerj/hydro-devel

Some patches that make hydro-devel work with catkin_make_isolated