reset ldap enabled property

Author: sventhiel

General/Configurations/Credentials.config

@@ -27,5 +27,6 @@
   <add key="Ldap_Host_Scope" value="0" />
   <add key="Ldap_Host_BaseDn" value="ou=users,dc=uni-jena,dc=de" />
   <add key="Ldap_User_Identifier" value="uid" />
+  <add key="Ldap_Enabled" value="true" />
 
 </appSettings>