fix img src
Merge branch 'master' of github.com:xifeiwu/demo-rio
Merge branch 'master' of github.com:IbpTeam/demo-rio
Merge branch 'master' of github.com:IbpTeam/demo-rio
internetwangfeng:auto get ip address
Merge pull request #12 from v11985/internetdiscoverywangfeng

InternetDiscovery#8_wangfeng ->yuanzhe
internetdiscovery_wangfeng:listen and advertise service
Merge pull request #13 from v11985/internetdiscoverywangfeng

IbpTeam:InternetDiscovery#8_wangfeng->wangyu
Merge branch 'master' of github.com:IbpTeam/demo-rio into internetdiscoverywangfeng
InternetDiscovery#8+yuanzhe:modify modules mdns
rm mdns/*
add mdns necessary file
Merge branch 'temp' into InterDiscovery#8-yuanzhe
InterDiscovery#8+yuanzhe:add necessary file to mdns modules
InterDiscovery#8+yuanzhe:modify mdns module
Merge pull request #15 from huyuanzhe/InterDiscovery#8-yuanzhe

Inter discovery#8 yuanzhe->wangfeng
Merge branch 'InternetDiscovery#8' of github.com:IbpTeam/demo-rio into internetdiscoverywangfeng
Merge branch 'master' of github.com:IbpTeam/demo-rio
internetdiscovery_wangfeng:New API getDeviceDiscoveryService and add module socket.io
Delete nouse code