Memcache stats reporting page menu items only reflect state at which menu router was rebuilt

q=admin/reports/memcache is a reporting page on all memcache bins. It should react to all of the configured memcache servers and bins. However, it only reacts to those that are known at the time the menu router is rebuilt. We need to move the lookup of the servers and bins out of hook_menu and display the appropriate information based on the memcache servers available whenever the page is loaded. To do this I propose a form element that you have to submit to see the different servers, or just simple links. This applies to 6.x and 7.x.