now removing all subscriptions when adding an XMPP service
now removing all subscriptions when adding an XMPP service


LABORA-UFG/omf,phelipealves/omf,phelipealves/omf,LABORA-UFG/omf,maxott/omf6,nathansamson/OMF,nathansamson/OMF,mytestbed/omf,mytestbed/omf,nathansamson/OMF,LABORA-UFG/omf,ardadouk/omf6,phelipealves/omf,LABORA-UFG/omf,nathansamson/OMF,mytestbed/omf,ardadouk/omf6,mytestbed/omf,phelipealves/omf,nathansamson/OMF,nathansamson/OMF