Marked the Ldap component as internal and removed Ldap constants polyfill

Author: csarrazi

Exception/ConnectionException.php

@@ -15,6 +15,8 @@
  * ConnectionException is throw if binding to ldap can not be established.
  *
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
+ *
+ * @internal
  */
 class ConnectionException extends \RuntimeException
 {

Exception/LdapException.php

@@ -15,6 +15,8 @@
  * LdapException is throw if php ldap module is not loaded.
  *
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
+ *
+ * @internal
  */
 class LdapException extends \RuntimeException
 {

LdapClient.php

@@ -18,6 +18,8 @@
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
  * @author Francis Besset <francis.besset@gmail.com>
  * @author Charles Sarrazin <charles@sarraz.in>
+ *
+ * @internal
  */
 class LdapClient implements LdapClientInterface
 {

LdapClientInterface.php

@@ -18,12 +18,11 @@
  *
  * @author Grégoire Pineau <lyrixx@lyrixx.info>
  * @author Charles Sarrazin <charles@sarraz.in>
+ *
+ * @internal
  */
 interface LdapClientInterface
 {
-    const LDAP_ESCAPE_FILTER = 0x01;
-    const LDAP_ESCAPE_DN = 0x02;
-
     /**
      * Return a connection bound to the ldap.
      *

README.md

@@ -1,10 +1,14 @@
 Ldap Component
-=============
+==============
 
 A Ldap client for PHP on top of PHP's ldap extension.
 
-This component also provides a stub for the missing
-`ldap_escape` function in PHP versions lower than 5.6.
+Disclaimer
+----------
+
+This component is currently marked as internal, as it
+still needs some work. Breaking changes will be introduced
+in the next minor version of Symfony.
 
 Documentation
 -------------