Merge branch 'feature/iOS_Line' into develop
add CocoaPod
update iOS, update server
fix splice
fix server bug,
add SocketIO reconnect
update Server/Client
fix css,table
add lockStudent API
update iOS Socket
change the Web View
Merge branch 'master' into develop
fix bugs , add Text Color
update iOS, add Image, update README.md
Merge pull request #9 from peterlee0127/develop

Develop