Complete modernization of Aphlict configuration

Summary:
Fixes T10697. This finishes bringing the rest of the config up to cluster power levels.

Phabricator is now given an arbitrarily long list of notification servers.

Each Aphlict server is given an arbitrarily long list of ports to run services on.

Users are free to make them meet in the middle by proxying whatever they want to whatever else they want.

This should also accommodate clustering fairly easily in the future.

Also rewrote the status UI and changed a million other things. 🐗

Test Plan:
{F1217864}

{F1217865}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10697

Differential Revision: https://secure.phabricator.com/D15703

src/applications/config/controller/PhabricatorConfigClusterDatabasesController.php

@@ -7,11 +7,11 @@ final class PhabricatorConfigClusterDatabasesController
     $nav = $this->buildSideNavView();
     $nav->selectFilter('cluster/databases/');
 
-    $title = pht('Cluster Databases');
+    $title = pht('Database Servers');
 
     $crumbs = $this
       ->buildApplicationCrumbs($nav)
-      ->addTextCrumb(pht('Cluster Databases'));
+      ->addTextCrumb(pht('Database Servers'));
 
     $database_status = $this->buildClusterDatabaseStatus();