fixed plugin interface to use new topic format
fixed plugin interface to use new topic format

larshesel/vmq_server,erlio/vmq_server,dergraf/vmq_server,larshesel/vmq_server,erlio/vernemq,linearregression/vmq_server,erlio/vmq_server,sunnyjain1/vmq_server,erlio/vernemq,dergraf/vmq_server,erlio/vernemq,erlio/vernemq