contacts写入数据库bug未完成
fix
Merge branch 'data2' of ssh://github.com/IbpTeam/demo-rio into data2_xiquan
test closure
Merge pull request #213 from v11985/data2

Clean code ->yuanzhe
修改addData和initGit逻辑
Merge pull request #215 from shuanzi/data2_xiquan

Data2_xiquan->wangfeng
add method to init database when first use
fix bus when init database
remove old db file
add delete method in commmon dao
merge
Merge pull request #216 from huyuanzhe/data2

Data2#153 yuanzhe->Wangfeng
Fix a bug