Sort options by key on "all config"

Summary: Oops, missed this -- alphabetical is probably a better sort order than by-group-then-by-definition.

Test Plan: Looked at alphabetical options.

Reviewers: codeblock, btrahan

Reviewed By: codeblock

CC: aran

Maniphest Tasks: T2255

Differential Revision: https://secure.phabricator.com/D4474

src/applications/config/controller/PhabricatorConfigAllController.php

@@ -9,6 +9,7 @@ final class PhabricatorConfigAllController
 
     $rows = array();
     $options = PhabricatorApplicationConfigOptions::loadAllOptions();
+    ksort($options);
     foreach ($options as $option) {
       $key = $option->getKey();