More title migrations to new style

Fixed some titles in the administration area for classes, attributes,
and the editor. Including add/edit/delete pages.
Some indention of code is also fixed

Author: Cyclodex

delete_attr.php

@@ -2,7 +2,7 @@
 
 require_once 'include/head.php';
 
-echo NConf_HTML::title('Delete Attribute');
+echo NConf_HTML::page_title('', 'Delete Attribute');
 
 if (DB_NO_WRITES == 1) {
     message($info, TXT_DB_NO_WRITES);

delete_class.php

@@ -2,7 +2,7 @@
 require_once 'include/head.php';
 //set_page();
 
-echo NConf_HTML::title('Delete class');
+echo NConf_HTML::page_title('', 'Delete class');
 
 if(  ( ( isset($_POST["delete"]) ) AND ($_POST["delete"] == "yes") ) AND
      ( ( isset($_POST["id"]) ) AND ($_POST["id"] != "") )