fixed #160
Added Javadoc and extracted messages
change a project name to yobi
Merge pull request #356 from keesun/feature/import

GIT 저장소 코드 가져오기
Merge pull request #380 from wansoon/issue-yobi

프로젝트명 Hive -> Yobi로 변경
Update README.md

remove old snapshots