Rebrand: Change Server name

Summary:
Use the name "Phorge" as the defined platform.

Also prepare to rename the core library "phorge" rather then "phabricator" - see next diff.

T15006

Test Plan: Deployed change, tooltip for "Config" shows "Configure Phorge"

Reviewers: O1 Blessed Committers, speck

Reviewed By: O1 Blessed Committers, speck

Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew

Maniphest Tasks: T15006

Differential Revision: https://we.phorge.it/D25046

src/error/PhutilErrorHandler.php

@@ -460,6 +460,7 @@ final class PhutilErrorHandler extends Phobject {
       // For these libraries, the effective root is one level up.
       switch ($library) {
         case 'arcanist':
+        case 'phorge':
         case 'phabricator':
           $root = dirname($root);
           break;

src/init/lib/PhutilBootloader.php

@@ -191,6 +191,10 @@ final class PhutilBootloader {
   }
 
   public function getLibraryRoot($name) {
+    if ($name === 'phabricator') {
+      // TODO warning
+      $name = 'phorge';
+    }
     if (empty($this->registeredLibraries[$name])) {
       throw new PhutilBootloaderException(
         "The phutil library '{$name}' has not been loaded!");

src/platform/PlatformSymbols.php

@@ -8,7 +8,7 @@ final class PlatformSymbols
   }
 
   public static function getPlatformServerName() {
-    return 'Phabricator';
+    return 'Phorge';
   }
 
   public static function getProductNames() {