(hironx_client.py) Add description to hand-related methods.

add more doc
Merge pull request #66 from 130s/doc_hiro_hands

(hironx_client.py) Add description to hand-related methods.
add rosbuild groovy on .travis.yml
add mk, rosbuild depends to manifest.xml, package.xml
fix openhrp3 path when install
hironx_ros_bridge: add roslang/rosbash to depends for roslib.load_manifest()
Merge pull request #63 from k-okada/add_rosbuild_groovy_on_travis

add rosbuild groovy on travis
Respect alphabetical order
Fix #65