Merge pull request #56 from k-okada/master

add Isaac to maintainer
add start_omninames.sh start starts omniNames for test code
Merge pull request #57 from k-okada/add_rosbuild_rostest

add start_omninames.sh start starts omniNames for test code
fix *.test files to add start_omninames.sh
Merge pull request #58 from k-okada/add_rosbuild_rostest

fix *.test files to add start_omninames.sh
(test-hostname.py): add more debug message when test failed