Add transaction-oriented editing to projects

Summary:
  - Make some editing operations transaction-oriented, like Maniphest. (This
seems to be a good model, particularly for extensibility.) I'll move the rest of
the editing operations to transactions in future diffs.
  - Make transaction-oriented operations publish feed stories.

Test Plan:
  - Created a new project.
  - Edited an existing project.
  - Created a new project via quick create flow from Maniphest.
  - Verified feed stories publish correctly.

Reviewers: btrahan, jungejason

Reviewed By: btrahan

CC: aran, epriestley

Maniphest Tasks: T681

Differential Revision: https://secure.phabricator.com/D1477

src/applications/project/controller/create/PhabricatorProjectCreateController.php

@@ -1,7 +1,7 @@
 <?php
 
 /*
- * Copyright 2011 Facebook, Inc.
+ * Copyright 2012 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,10 +34,16 @@ class PhabricatorProjectCreateController
     if ($request->isFormPost()) {
 
       try {
+        $xactions = array();
+        $xaction = new PhabricatorProjectTransaction();
+        $xaction->setTransactionType(
+          PhabricatorProjectTransactionType::TYPE_NAME);
+        $xaction->setNewValue($request->getStr('name'));
+        $xactions[] = $xaction;
+
         $editor = new PhabricatorProjectEditor($project);
         $editor->setUser($user);
-        $editor->setName($request->getStr('name'));
-        $editor->save();
+        $editor->applyTransactions($xactions);
       } catch (PhabricatorProjectNameCollisionException $ex) {
         $e_name = 'Not Unique';
         $errors[] = $ex->getMessage();