Remove any dokuwiki stuff from the completion file

src/freedombone-app-dokuwiki

     remove_completion_param "install_dokuwiki"
     remove_completion_param "dokuwiki domain"
     sed -i '/Dokuwiki/d' /home/$MY_USERNAME/README
+    sed -i '/dokuwiki/d' $COMPLETION_FILE
 }
 
 function get_dokuwiki_admin_password {