iOS events connectionDidConnect, connectionDidDisconnect use to and from instead of call_to and call_from

[fabriziomoscon]

In version 3.2.0 the parameters for:

• connectionDidConnect

• connectionDidDisconnect
  are different between iOS and Android.

• to is used instead of call_to

• from is used instead of call_from

As a temporary fix you can migrate the parameters in your app:

if (Platform.OS === 'ios') {
  if (params.to) {
    params.call_to = params.to
    delete params.to
  }
  if (params.from) {
    params.call_from = params.from
    delete params.from
  }
}

Also on iOS the event connectionDidDisconnect uses the parameter error instead of err
As a temporary fix you can migrate the parameters in your app:

if (Platform.OS === 'ios') {
  if (params.error) {
    params.err = params.error
    delete params.error
  }
}

[fabriziomoscon]

on ios connectionDidConnect has no to and from parameters, this is different from the Android behaviour. See #62