Release version v0.2.2

Change the default service from 'http' to '80'

I encountered a bug in Android NDK that show 'servname not supported for ai_socktype' when I set the servname to be 'http'

Release version 0.2.1

v0.2.1

[continued] Show more info in exception messages. close #7

Release version v0.2.0

Implement the first version of the http::Response class

Release version v0.1.1

Forget to commit

Release version v0.1.0

Provide the first test case. Close #2