class Thor::Runner

def help(meth=nil)


Override Thor#help so it can give information about any class and any method. 
def help(meth=nil)
  if meth && !self.respond_to?(meth)
    initialize_thorfiles(meth)
    klass, task = Thor::Util.find_class_and_task_by_namespace!(meth)
    klass.start(["-h", task].compact, :shell => self.shell)
  else
    super
  end
end