Fix some bugs
temp
Merge branch 'data#40_wangfeng' of github.com:v11985/demo-rio into data#40_wangfeng
merge
Merge branch 'Data' of github.com:IbpTeam/demo-rio into data#40_wangfeng
Delete browser on serviceChanged
Add Contact issue#47
Merge pull request #49 from v11985/data#40_wangfeng

Data#40 wangfeng->yuanzhe