WIP: impl config models for ldap

lib/models/config.js

@@ -54,6 +54,7 @@ module.exports = function(crowi) {
       'security:registrationWhiteList' : [],
 
       'security:isEnabledPassport' : false,
+      'security:passport-ldap:isEnabled' : false,
 
       'aws:bucket'          : 'crowi',
       'aws:region'          : 'ap-northeast-1',