Merge pull request #123 in ZP/z-push from bugfix/ZP-810-Missing-config-BackendCombined to develop

* commit 'aa801676':
  ZP-810 Missing configuration in BackendCombined for BackendLDAP. Released under the Affero GNU General Public License (AGPL) version 3.

src/backend/combined/config.php

@@ -74,6 +74,9 @@ class BackendCombinedConfig {
                 'v' => array(
                     'name' => 'BackendVCardDir',
                 ),
+                'l' => array(
+                    'name' => 'BackendLDAP',
+                ),
                 'd' => array(
                     'name' => 'BackendCardDAV',
                 ),