add test code
Merge pull request #2 from k-okada/add_test_code

add test code
use mk package
Merge branch 'master' of https://github.com/k-okada/openrtm_aist_core into add_test_code
Merge pull request #4 from k-okada/use_mk

use mk package
add rostest to depends and fix test file names
fix conflict