angular刷新当前页面

refer to:  http://stackoverflow.com/questions/16703215/how-to-reload-or-re-render-the-entire-page-using-angularjs

$location.path('/')  # 可以刷新到除当前页面之外的页面
$route.reload()   # 刷新当前页面 ，  类似于  rails  redirect_to :back