- Moves Import and Export under ImportExport namespace

- Cretes a single BootStrapMenu class for Import and Export
- Updates tests
- Adds 2 new methods to Segments model

lib/Router/Segments.php

@@ -55,6 +55,7 @@ class Segments {
         )
         ->findOne()->asArray();
 
+      !d(\ORM::get_last_query());exit;
       $item = array_merge($item, $stats);
 
       $item['subscribers_url'] = admin_url(