Fix uses of deprecated pause / unpause methods in XMPP.
Fix uses of deprecated pause / unpause methods in XMPP.

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