Sometime RequestURI is not set, e.g. running after a front proxy server.
We should always follow the document's directive, to use Request.URL instead of RequestURI.
Refer: http://golang.org/pkg/net/http/#Request
We can only use SetPaginator to create a pagination.
After that, we always need to modify something, like the totalNum, perPageNum.
These change should be seen in the view.
So we should give the view a pointer than a object.
