Group applications into groups on /applications/

Summary: So they're maybe a little easier to deal with? I'm going to take this formally to "plz @chad plz help" land.

Test Plan: {F20329}

Reviewers: btrahan, vrana, chad

Reviewed By: vrana

CC: aran

Differential Revision: https://secure.phabricator.com/D3609

src/applications/project/application/PhabricatorApplicationProject.php

@@ -38,6 +38,10 @@ final class PhabricatorApplicationProject extends PhabricatorApplication {
     return pht('Group stuff into big piles.');
   }
 
+  public function getApplicationGroup() {
+    return self::GROUP_ORGANIZATION;
+  }
+
   public function getRoutes() {
     return array(
       '/project/' => array(