- Added `ssl_options` to `WebSockex.Conn` struct.
  - Documentation Pending...

- Fix `pong` frame not being a correct return type in spec
- Fix bare `ping` and `pong` frames in spec
  - When there is no associated payload for their frame types
- Fix handling SSL socket closings during the `close_loop`
- Add types and documentation for processes named with `:via` and `:global`
- Fixed a crash when replying to a closed socket