Install nodejs

src/freedombone-app-jitsi

     # add jitsi repo
     jitsi_deb_repo=unstable
     apt-get -yq install wget debconf-utils
+    install_nodejs jitsi
+    npm install -g browserify@13.1.1
     if ! grep "jitsi" /etc/apt/sources.list; then
         echo "deb http://download.jitsi.org/nightly/deb ${jitsi_deb_repo}/" >> /etc/apt/sources.list
     fi