Issues with the `feat/inclusion` branch

[egyedia]

While testing the branch, I ran into one minor, and a major issue.
These are:

1. Minor issue: when starting with gulp, this warning is shown on the shell console:

app/scripts/app.js
  line 107  col 34  'arrow function syntax (=>)' is only available in ES6 (use 'esversion: 6').
  ⚠  1 warning

while this is not a showstopper, might be nice not to have it here

2. Major issue. This is actually a showstopper because prevents the frontend to be used properly:
   While loading the app in the browser, this is shown in the browser console:

artifact-selector.js:1 ERROR Error: The selector "app-root" did not match any elements
    at uu.selectRootElement (artifact-selector.js:1:120753)
    at K0 (artifact-selector.js:1:66953)
    at Co.create (artifact-selector.js:1:66991)
    at e.bootstrap (artifact-selector.js:1:103997)
    at artifact-selector.js:1:101850
    at Array.forEach (<anonymous>)
    at e._moduleDoBootstrap (artifact-selector.js:1:101837)
    at artifact-selector.js:1:101539
    at v.invoke (artifact-selector.js:1:240483)
    at Object.onInvoke (artifact-selector.js:1:94969)

The problem that I've seen on my system is that while the type filters are all in the "on" state, only the elements are shown on the right:

If I click all the template selector twice, everything will be properly displayed:

After a reload, the first state shows up again.

[muakdogan]

@egyedia thanks for reporting these. I'm aware of these issues and will fix them before the merge.