Restructured enterprise tabs a bit.

Fixed reference to non-existant i18n tag.
Minor tweaks for LDAP group manager and aequence manager.

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/trunk@9859 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/database/SequenceManager.java

@@ -261,7 +261,7 @@ public class SequenceManager {
             pstmt.execute();
         }
         finally {
-            DbConnectionManager.closeConnection(pstmt, null);
+            DbConnectionManager.closeStatement(pstmt);
         }
     }
 }
\ No newline at end of file

src/java/org/jivesoftware/openfire/ldap/LdapGroupProvider.java

@@ -669,7 +669,7 @@ public class LdapGroupProvider implements GroupProvider {
                                         String userDNPart = ldapName.get(ldapName.size() - 1);
                                         NamingEnumeration usrAnswer = ctx.search("",
                                                 userDNPart, searchControls);
-                                        if (usrAnswer.hasMoreElements()) {
+                                        if (usrAnswer != null && usrAnswer.hasMoreElements()) {
                                             username = (String) ((SearchResult) usrAnswer.next())
                                                     .getAttributes().get(
                                                     manager.getUsernameField()).get();