* WIP: refactoring

* refactor http server

* fix tests

* Delete TODO.txt

* fix tests again

* add benches/src/lib.rs

* remove bench changes; fast less deps

* no more env_logger

* update examples

* ws server; expose headers in middleware

* add back uncommented code

* fix nits

* make the code more readable

* add back the tracing stuff

* simplify code but one extra clone

* fix tests again

* revert async accept API

* fix nits

* different traits for WS and HTTP middleware

* fix tests

* revert benchmark change

* Update core/src/server/helpers.rs

* Update ws-server/Cargo.toml

* add limit to batch responses as well

* pre-allocate string for batches

* small refactor