update to angular v6

[andrasczeh]

I've upgraded to angular 6, and applied a workaround in polyfills.ts. Nice project by the way!

[narve]

Hi @andrasczeh thanks a lot for this contribution, and sorry for the late reply!

I tried to merge this PR but it doesn't seem to work in production builds with the other commits in my project (possibly bpmn-js lib updates from #4). Could you take a look at https://github.com/narve/angular-bpmn/tree/andrasczeh-master and see if you spot the problem?

[andrasczeh]

Hi, sorry for the late reply. I looked into it and seems to be an issue with the angular buildoptimizer. angular/angular-cli#10655
A workaround would be to disable it, but I will try to find a real solution within a few days.

[besteban1989]

Hi guys, I've been trying to make this work for an angular 6 version but no success.
In dev time works great, but when I build it for production then I get this error:

main.72aee93….js:1 ERROR TypeError: this._createContainer is not a function at ap.on (main.72aee93….js:1) at new ap (main.72aee93….js:1) at t.ngOnInit (main.72aee93….js:1) at main.72aee93….js:1 at main.72aee93….js:1 at Zi (main.72aee93….js:1) at Oo (main.72aee93….js:1) at Object.updateDirectives (main.72aee93….js:1) at Object.updateDirectives (main.72aee93….js:1) at Ki (main.72aee93….js:1)

And as @andrasczeh mention, after removing the angular optimizer it work.

[narve]

Master is now upgraded to Angular 7, with the same bug (createContainer) in production mode. Production mode is not really a requirement so I'm just ignoring it for now.