* Temporary disable realmjs target on CI
It's broken because it doesn't support the node-fetch module. Let's disable it for now.
* Temporarily disable Android tests
They need an Object Server to talk to on CI
* Disable test assertion
* Use ES6 Proxies to implement collections in the Chrome debugger
* rework realm-test-names event
* move React stuff on the CPH mac mini
* use node with npm3
* remove debugging aid code
Checks out the repo on one machine, then uses stash/unstash to get that checkout onto all the other machines. Additionally adds a timeout to the android build to prevent those from hanging machines indefinitely and does some general cleanup on the Jenkinsfile.
