make user send xml string directly instead of ltx object
make user send xml string directly instead of ltx object

tempbottle/node-xmpp,xmppjs/xmpp.js,qbit/node-xmpp,ggozad/node-xmpp,ggozad/node-xmpp,xmppjs/xmpp.js,node-xmpp/node-xmpp,qbit/node-xmpp,node-xmpp/node-xmpp,WeBest/node-xmpp,agebrock/node-xmpp,agebrock/node-xmpp