Merge pull request #15 from k-okada/master

use xargs to exit non-zero if test failed, rm build for test
Init commit of CHANGELOG.rst files. Adjusted version to its upstream (1.0.1 --> 3.0.0).
Fix https://github.com/start-jsk/rtshell_core/issues/16
Merge pull request #17 from 130s/master

Fix https://github.com/start-jsk/rtshell_core/issues/16
remove k-okada from author