Merge pull request #23 from k-okada/master

add test code to catch if pkg-config openhrp3.1 does not work well, also...
(#24) add rosbuild, see https://github.com/ros/ros/issues/47
Merge branch 'master' of https://github.com/k-okada/openhrp3
Merge branch 'master' of https://github.com/start-jsk/openhrp3