develop
Fix lint and format code in server dir
remove pkg directory; remove build directory; remove githook directory;
format code
bugfix Controller SaveToFile remove all temp file
Refator: 1. Move BindXXX core logic to context.Context for two reasons: 1.1 Controller should be stateless -- Due to historical reason, it's hard for us to do this but we should try it 1.2 If users didn't use Controller to write their functions, they should be allowed to use those methods 2. Move XXXResp to context.Context
Modify comment syntax error (#5094)
Always set a default value "/" for Cookie "Path"