Add TypeScript support, closes #285

[goto-bus-stop]

If typescript is installed, add the tsify plugin.

If a syntax error occurs in a .ts file, recommend installing typescript.

TODO: Catch and format errors from the typescript compiler…

[goto-bus-stop]

Now also formatting typescript errors:

And did some work on syntax error messages for javascript too: (Previously this would only show "Syntax Error")

[yoshuawuyts]

@goto-bus-stop sick work! Question tho: none of this would work with server rendering, right?

[goto-bus-stop]

Afraid that's correct 😄 that is also going to be an issue for react support with babel. Not sure what to do about that yet.