libp2p-wasm-ext 0.30.0

Allows passing in an external transport in a WASM environment
Documentation
# 0.30.0 [2021-11-01]

- Make default features of `libp2p-core` optional.
  [PR 2181]https://github.com/libp2p/rust-libp2p/pull/2181

- Update dependencies.

# 0.29.0 [2021-07-12]

- Update dependencies.

# 0.28.2 [2021-04-27]

- Support dialing `Multiaddr` with `/p2p` protocol [PR
  2058](https://github.com/libp2p/rust-libp2p/pull/2058).

# 0.28.1 [2021-04-01]

- Require at least js-sys v0.3.50 [PR
  2023](https://github.com/libp2p/rust-libp2p/pull/2023).

# 0.28.0 [2021-03-17]

- Update `libp2p-core`.

# 0.27.0 [2021-01-12]

- Update dependencies.

# 0.26.0 [2020-12-17]

- Update `libp2p-core`.

# 0.25.0 [2020-11-25]

- Update `libp2p-core`.

# 0.24.0 [2020-11-09]

- Fix the WebSocket implementation parsing `x-parity-ws` multiaddresses as `x-parity-wss`.
- Update dependencies.

# 0.23.0 [2020-10-16]

- Update `libp2p-core` dependency.

# 0.22.0 [2020-09-09]

- Update `libp2p-core` dependency.

# 0.21.0 [2020-08-18]

- Update `libp2p-core` dependency.

# 0.20.1 [2020-07-06]

- Improve the code quality of the `websockets.js` binding with the browser's `WebSocket` API.

# 0.20.0 [2020-07-01]

- Updated dependencies.
- Support `/dns` in the websocket implementation
  ([PR 1626]https://github.com/libp2p/rust-libp2p/pull/1626)