Upgrade build setup to node 5 + update all npm dependencies (especially karma)

[IgorMinar]

also can someone please prepare PRs to make master, 1.4.x, 1.3.x compatible with node 5? do not merge them, just prepare the PRs please. Ideally these three branches should have the same build setup and be always updated in sync so that it’s easy to jump between branches and cherry-pick commits

• master
• 1.4.x
• 1.3.x

[IgorMinar]

this is not time-critical but we should do it soonish. on or before Dec 21 is good.

[gkalpak]

Node 5 comes with npm 3, which breaks our "purge node_modules in preinstall" workflow. This is tracked in #13123.

The same issue should also affect ng2 (see angular/angular#5172). @IgorMinar, any ideas on how to tackle it on ng2 ?

[IgorMinar]

I'll work on nmp3 upgrade of ng2 in late december.

If this is blocking then let's upgrade to node 4 first now and once ng2 is
npm3 compatible we'll reuse the same approach here.
On Thu, Dec 10, 2015 at 9:44 PM Georgios Kalpakas [email protected]
wrote:

Node 5 comes with npm 3, which breaks our "purge node_modules in
preinstall" workflow. This is tracked in #13123
#13123.

The same issue should also affect ng2 (see angular/angular#5172
angular/angular#5172). @IgorMinar
https://github.com/IgorMinar, any ideas on how to tackle it on ng2 ?

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#13505 (comment)
.

[Narretz]

Why do we need it for 1.3? I'd say more people are using 1.2 than 1.3.

[petebacondarwin]

I think it is reasonable to ensure that our main branches are all building on the same environment.
This feels like a problem that only needs solving once and then we could roll it out across the board.
1.3 is a low priority for us but I think that there are still quite a few Google apps using that version. @IgorMinar could probably provide more detail.

[petebacondarwin]

Here is a PR for using node 4 on Travis: #13552

[Narretz]

We are on node 6 right now :D