add: a simple test, verify how Git working
add: manual implement res.stream

Implement: res.stream(stream) should stream data to client
To-Do:res.sendfile(data,options) to stream file data to client
add: Manual implement res.sendfile.

Implement: res.sendfile(data,options) to stream file data to client
To-Do: Implement: Set Content-Type and Content-Length headers
add: can be set content type or length of sendfile

Implement: Set Content-Type and Content-Length headers
To-Do: Implement: respond with error for bad paths
add: Respond with error for bad paths

Implement: respond with error for bad paths
To-Do: Implement Range Request Support
add: Manual implement Range Request Support

To-Do: Lesson 9 - Express Dependency Injection