- 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

RoboFile.php

@@ -66,8 +66,7 @@ class RoboFile extends \Robo\Tasks {
       'assets/css/src/newsletter_editor/newsletter_editor.styl',
       'assets/css/src/public.styl',
       'assets/css/src/rtl.styl',
-      'assets/css/src/import.styl',
-      'assets/css/src/export.styl'
+      'assets/css/src/importExport.styl'
     );
 
     $this->_exec(join(' ', array(
@@ -126,4 +125,4 @@ class RoboFile extends \Robo\Tasks {
     $dotenv = new Dotenv\Dotenv(__DIR__);
     $dotenv->load();
   }
-}
+}