'Generates a new channel with random name'

def _exec_cmd_new_channel(self, event):

    prefix = event.msg.get('prefix', 'temp')
    n = self._gen_channel_name(prefix)
    ch = self._nexus.get_channel(n, create=True, temporary=True)
    ch._add_member(event.con, event.msg)
    self.reply(event, new_channel=n)
