Update XMPP transport to use Service-based worker features.
Update XMPP transport to use Service-based worker features.

vishwaprakashmishra/xmatrix,TouK/vumi,harrissoerja/vumi,TouK/vumi,TouK/vumi,harrissoerja/vumi,vishwaprakashmishra/xmatrix,harrissoerja/vumi,vishwaprakashmishra/xmatrix