0.2.0
Small improvements & bugfixes of 0.1.0 version:
- [doc] update README with API documentation
- [feat] add types and specs definitions to run dialyzer
- [feat] run travis CI
- [feat] save http connection in server state
- [bug] import public_key.hrl correctly
- [bug] retrieve nonce with GET instead of HEAD (HEAD query was failing sometimes, probably due to an issue in erlang http client library)