Hardcoded "Bluemix" URLs

[christiancompton]

In some places, bluemix.net is hardcoded. At the minimum, this must be upgraded to cloud.ibm.com, if not removed entirely.

PushSDKCredentials.swift - CloudEnvironment can be used on other cloud providers (esp given OpenShift will be coming…) but in this code I see “bluemix.net” hardcoded - is that supposed to be there?

   guard let host = url.host,
     host.hasSuffix(“.bluemix.net”)
   else{
     return nil
   }
   let parts = host.split(separator: “.”).suffix(3)
   guard parts.count > 2 && parts.first != “imfpush” else {
     return nil
   }
   return parts.joined(separator: “.”)
 }```