Fix applications icon

Summary: Typo

Test Plan: Reload homepage, get the globe.

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D5598

src/applications/meta/application/PhabricatorApplicationApplications.php

@@ -15,7 +15,7 @@ final class PhabricatorApplicationApplications extends PhabricatorApplication {
   }
 
   public function getIconName() {
-    return 'applications';
+    return 'application';
   }
 
   public function getTitleGlyph() {