Migration plan to other HTTP servers

[ubnt-intrepid]

Currently, there are two crates, tsukuyomi-server and tsukuyomi-service, in order to make the implementation of HTTP server separate from the role of Web framework (the behavior as an asynchronous function from an HTTP request to an HTTP response). these crates will be replaced the (official) HTTP server provided the community in the future. I want to migrate the server part in this project to another crate ASAP, but as it is difficult at the present time, it is necessary to consider the migration plan to another HTTP server.

[ubnt-intrepid]

Candidates:

1. Keep the current status and wait for appearing the new HTTP server(s).
2. Deprecate tsukuyomi-server and use hyper and its abstraction directly.

[ubnt-intrepid]

Note: I created a new project based on tsukuyomi-server, with the aim of using it in other frameworks: https://github.com/ubnt-intrepid/izanami