[fix] metadata issue, fixes #74

[lucagouty]

Summary of changes:

• Change imports to fix metadata issue

Honestly, I'm not sure what was the issue, but I found that fix in ngx-progressbar which had the same issue some time ago :

• Issue : https://github.com/MurhafSousli/ngx-progressbar/issues/160
• PR : https://github.com/MurhafSousli/ngx-progressbar/pull/168/files

Other unrelated changes (I'll rollback if you want)

• Update npm-run-all (I would keep that one, see https://github.com/dominictarr/event-stream/issues/116 ⚠️) Also, I couldn't make npm i to work without it, because npm ERR! 404 Not Found: flatmap-stream@0.1.1
• Add baseUrl to tsconfig (required for "paths")

Intended/example use case:

Of course, first I made sure I was reproducing the issue, without this change, I get

ERROR in Error during template compile of 'CoreModule'
  Function calls are not supported in decorators but 'IntercomModule' was called.
: Unexpected value 'undefined' imported by the module 'CoreModule in /some/path/src/app/core/core.module.ts'
Error during template compile of 'CoreModule'
  Function calls are not supported in decorators but 'IntercomModule' was called.

With this fix, everything goes well now (Angular7, both ng build --prod and ng xi18n)

Checklist:

• [x] npm run build runs without error
• [x] ng serve spawns app, Intercom messenger is visible and interactive, and there are no errors in the console

Closes issue: #74

[scott-wyatt]

Thank you for the PR! I'm going to close and reopen this to trigger the CI.

[scott-wyatt]

This will be released in #84 release 7.0.0-beta.1

[wbhob]

thanks so much for your work, Luca !