implement XEP-0184
implement XEP-0184

Zauberstuhl/jsxc,svbergerem/jsxc,Zauberstuhl/jsxc,svbergerem/jsxc,diaspora/jsxc,diaspora/jsxc,jsxc/jsxc,Zauberstuhl/jsxc,jsxc/jsxc,pravi/jsxc,pravi/jsxc,svbergerem/jsxc,pravi/jsxc,diaspora/jsxc,jsxc/jsxc