Remove JSON0 Dependency for Client

[curran]

Related to #284

Use case: I want to use the ShareDB client with JSON1, and I'm looking to generate a client build that does not contain JSON0 bundled with it.

The ShareDB client has a hard dependency on JSON0, and it's pulled in here:

https://github.com/share/sharedb/blob/master/lib/client/index.js#L5

https://github.com/share/sharedb/blob/master/lib/types.js#L2

I wonder if there might be a way to generate a browser build for the ShareDB client that does not have JSON0 bundled with it, to reduce the size of the bundle. Thanks!

[curran]

I was able to do this in https://github.com/vizhub-core/sharedb-client-browser

Closing as the problem is solved. Feel free to comment or reopen if this is of interest inside of mainline ShareDB!