Use HTTPS link to the buildbot

src/applications/buildbot/application/PhabricatorApplicationBuildbot.php

@@ -3,7 +3,7 @@
 final class PhabricatorApplicationBuildbot extends PhabricatorApplication {
 
   public function getBaseURI() {
-    return 'http://builder.blender.org/download/';
+    return 'https://builder.blender.org/download/';
   }
 
   public function getIconName() {

src/applications/buildbot/controller/PhabricatorBuildbotController.php

@@ -13,9 +13,9 @@ final class PhabricatorBuildbotController extends PhabricatorController {
 
     $html = '
       <script type="text/javascript">
-        window.location = "http://builder.blender.org/download";
+        window.location = "https://builder.blender.org/download";
       </script>
-      See <a href="http://builder.blender.org/download">builder.blender.org</a>.';
+      See <a href="https://builder.blender.org/download">builder.blender.org</a>.';
 
     $panel = new AphrontPanelView();
     $panel->appendChild(phutil_safe_html($html));