Implement web-sys/wasm-bindgen support.

[kellpossible]

• Implement support for web-sys/wasm-bindgen Make frontend compatible with web_sys and make it the default #4 .
• Add documentation.

I haven't attempted to maintain compatibility with stdweb in this pull request because I don't have a real project to test it with, and don't have time to make one. Feel free to alter this PR and implement the feature to support both. It seems like the Rust ecosystem is moving over to web-sys anyway, it is now the default for yew. There's also a decent chance that web-sys fixes the issues mentioned in #2 (comment) with the new version of rand on OSX, I'll be testing on this platform soon.

Tested on Linux and Window (Edge).

[hobofan]

Awesome! 👏 I do want to keep stdweb compatibility for now, as I also have a project where I use it and probably won't fully convert for some time. Should hopefully get around to adjusting it this weekend.

[kellpossible]

I thought that might be the case, well we've got both uses covered between us which is good!

[kellpossible]

Just a heads up, it looks like yew is planning to drop support for stdweb soon: yewstack/yew#1569

[hobofan]

Yay! I've already heard the chatter about it on the Yew discord and have since started to accelerate my refactor efforts to get rid of stdweb. Will merge the PR, once I'm done with my relevant private project!

Sorry for not getting around to this PR when I said I would, but life just keeps getting in the way 😬

[kellpossible]

No worries 🙂 take your time, I'm working from a fork which has a some more controversial changes which may never get merged upstream, so there's no hurry with this one on my part.