Migrate Project status to modular transactions

Test Plan: Unit tests pass. Archived/activated some projects a couple times; observed expected transactions on timeline.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D17953

src/applications/project/controller/PhabricatorProjectArchiveController.php

@@ -32,7 +32,8 @@ final class PhabricatorProjectArchiveController
       $xactions = array();
 
       $xactions[] = id(new PhabricatorProjectTransaction())
-        ->setTransactionType(PhabricatorProjectTransaction::TYPE_STATUS)
+        ->setTransactionType(
+            PhabricatorProjectStatusTransaction::TRANSACTIONTYPE)
         ->setNewValue($new_status);
 
       id(new PhabricatorProjectTransactionEditor())

src/applications/project/controller/PhabricatorProjectColumnHideController.php

@@ -65,7 +65,8 @@ final class PhabricatorProjectColumnHideController
         $xactions = array();
 
         $xactions[] = id(new PhabricatorProjectTransaction())
-          ->setTransactionType(PhabricatorProjectTransaction::TYPE_STATUS)
+          ->setTransactionType(
+              PhabricatorProjectStatusTransaction::TRANSACTIONTYPE)
           ->setNewValue($new_status);
 
         id(new PhabricatorProjectTransactionEditor())