WIP: impl config models for ldap

lib/models/config.js

@@ -55,6 +55,12 @@ module.exports = function(crowi) {
 
       'security:isEnabledPassport' : false,
       'security:passport-ldap:isEnabled' : false,
+      'security:passport-ldap:isEnabled' : undefined,
+      'security:passport-ldap:serverUrl' : undefined,
+      'security:passport-ldap:isUserBind' : undefined,
+      'security:passport-ldap:bindDN' : undefined,
+      'security:passport-ldap:bindDNPassword' : undefined,
+      'security:passport-ldap:searchFilter' : undefined,
 
       'aws:bucket'          : 'crowi',
       'aws:region'          : 'ap-northeast-1',