don't hardcode talk.google.com
don't hardcode talk.google.com

Verify XMPP hostname against string from config instead of always assuming it's talk.google.com
avlis/cloud-print-connector,agoode/cloud-print-connector,agoode/cups-connector,swills/cups-connector,agoode/cloud-print-connector,agoode/cups-connector,agoode/cloud-print-connector,google/cloud-print-connector,swills/cups-connector,avlis/cloud-print-connector,google/cloud-print-connector,agoode/cloud-print-connector,avlis/cloud-print-connector,avlis/cloud-print-connector,201371192/cups-connector,google/cloud-print-connector,201371192/cups-connector,google/cloud-print-connector