Fix fatal on project editing

Summary:
I didn't grep carefully enough when renaming this to 'loadProject' in D485. See
task. I am terrible at the programmings.

Test Plan:
Hit the "Edit project" view, grepped more thoroughly. :P

Reviewed By: tomo
Reviewers: tomo, toulouse, cadamo
CC: aran, tomo
Differential Revision: 503

src/applications/project/controller/profileedit/PhabricatorProjectProfileEditController.php

@@ -35,7 +35,7 @@ class PhabricatorProjectProfileEditController
       if (!$project) {
         return new Aphront404Response();
       }
-      $profile = $project->getProfile();
+      $profile = $project->loadProfile();
     } else {
       $project = new PhabricatorProject();
       $project->setAuthorPHID($user->getPHID());