Nativescript 3.4 and angular 5 - support

[giorgiopiatti]

For the past days, I've was thinking that this can be achieved adding timeOut when initializing Firebase as mention in issue #588, but it was wrong.
I've open this new issue to address this problematic, in which I will explain me better.

Using the plugin as always with firebase.init, return nothing, no error, no promise callback. Simply the plugin isn't initialized.

Putting the initialization function into a timeout:
setTimeout(()=>{ firebase.init(()=>{...}) },1000)

Something seems to work, authentication is working fine (login, auth callback, ...).
Also retrieving data from the real-time DB works,
but when I try to update a value something goes wrong:
JS: Unhandled Promise rejection: Reload failed com.google.firebase.FirebaseNetworkException: A network error (such as timeout, interrupted connection or unreachable host) has occurred. ; Zone: <root> ; Task: ; Value: Reload failed com.google.firebase.FirebaseNetworkException: A network error (such as timeout, interrupted connection or unreachable host) has occurred.

These problems are related to the following versions:
angular: ^5.0.0; nativescript: 3.4; nativescript-angular: ^5.0.0 ; tns-core-modules: 3.4; tns-android: 3.4

I think that it can be related to some conflict and/or changes in nativescript-angular.

Note: I've cannot test it on iOs

[EddyVerbruggen]

Thank you. See #613.