Update to jlab 0.35 and typescript 3.1.1

[jasongrout]

No description provided.

[blink1073]

Thanks!

[saulshanabrook]

Are we waiting on anything else to merge this? @jzf2101 was wondering what JL version to user in her tutorial and I think if this gets merged beforehand she should use the latest whereas if it doesn't she should use the older version.

[jzf2101]

@jasongrout ready to merge?

[jasongrout]

@jasongrout ready to merge?

Not quite yet. We should (a) publish final js packages, then (b) update this PR to refer to those final packages.

That said, I think it would technically work if we merged this PR and you used the RC.

[jasongrout]

I think this is ready to merge now

[jasongrout]

Well, I guess the install steps call for it to be merged after the jlab 0.35 python package is published, so maybe not quite yet.

[jasongrout]

Well, it looks like we need this in order to update other things, so I'll merge this. I added some instructions for what to do if you want a version for another jlab release.