1. Moved ldap authorization data to its own table to better support...

1.  Moved ldap authorization data to its own table to better support exportables.  Now only ldap authentication and general prefs are stored in variables.
2.  Moved ldap_temp_api into ldap_server.  Essentially ldap_server is now the temporary api.  This is to avoid some confusion people were having on installs.
3. Added a few user warnings and messages.