Let requestors claim their code is picked

Summary:
In Releeph, `ReleephRequestHeaderView` will render you a "mark-manually-picked" button if (a) you are authoritative (chuckr) or (b) you are the person who created this Releeph request.

However `ReleephRequestActionController`, which handles these button presses, will only do something if you are (a).  This patch honors your button pressing if you are (b) as well.

Test Plan: Push buttons.  There's another bug in the Javascript do-stuff-without-reloading-the-page code that handles these button pushes, but I'd like to fix that separately from handling this hi-pri bug.

Reviewers: epriestley, wez

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D6036

Author: Edward Speyer

src/applications/releeph/controller/request/ReleephRequestActionController.php

@@ -49,11 +49,15 @@ public function processRequest() {
 
       case 'mark-manually-picked':
       case 'mark-manually-reverted':
-        if (!$releeph_project->isAuthoritative($user)) {
+        if (
+          $releeph_request->getRequestUserPHID() === $user->getPHID() ||
+          $releeph_project->isAuthoritative($user)) {
+
+          // We're all good!
+        } else {
           throw new Exception(
-            "Bug!  Only authoritative users (pushers, or users in pusherless ".
-            "Releeph projects) can manually change a request's in-branch ".
-            "status!");
+            "Bug!  Only pushers or the requestor can manually change a ".
+            "request's in-branch status!");
         }
 
         if ($action === 'mark-manually-picked') {