Bug 572578 - Set a type for sidebar nav

Change-Id: Id5c51d499689d0b0062a1767965ea39f8a1035fb
Signed-off-by: Eric Poirier <eric.poirier@eclipse-foundation.org>
diff --git a/_projectCommon.php b/_projectCommon.php
index 3ab4e26..23854e2 100644
--- a/_projectCommon.php
+++ b/_projectCommon.php
@@ -16,6 +16,7 @@
 $App->Promotion = TRUE;
 
 $Nav = new Nav();
+$Nav->setType('collapse');
 $Nav->addNavSeparator("About Us", "/org/");
 
 $Nav->addCustomNav("Members & Supporters", "/membership", "_self", 1);