add remaining class filename and add migration to fix the cronjobs, re #4282

Merge request studip/studip!3136

96 files changed, 116 insertions, 121 deletions

diff --git a/lib/classes/ActionMenu.php b/lib/classes/ActionMenu.php
index 0822f72..25351ce 100644
--- a/lib/classes/ActionMenu.php
+++ b/lib/classes/ActionMenu.php
@@ -410,7 +410,7 @@ class ActionMenu
         $rendering_mode = $this->rendering_mode;
 
         if ($rendering_mode === null) {
-            $rendering_mode = $this->countActions() <= Config::get()->ACTION_MENU_THRESHOLD
+            $rendering_mode = $this->countActions() <= 1 // Config::get()->ACTION_MENU_THRESHOLD
                             ? self::RENDERING_MODE_ICONS
                             : self::RENDERING_MODE_MENU;
         }
diff --git a/lib/classes/Assets.php b/lib/classes/Assets.php
index 928c47c..d4d792e 100644
--- a/lib/classes/Assets.php
+++ b/lib/classes/Assets.php
@@ -6,7 +6,7 @@
 # Lifter010: TODO
 
 /*
- * Assets.class.php - assets helper
+ * Assets.php - assets helper
  *
  * Copyright (C) 2007 - Marcus Lunzenauer <mlunzena@uos.de>
  *
diff --git a/lib/classes/AuthorObject.php b/lib/classes/AuthorObject.php
index b3e98e3..f08622e 100644
--- a/lib/classes/AuthorObject.php
+++ b/lib/classes/AuthorObject.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +--------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// AuthorObject.class.php
+// AuthorObject.php
 //
 // Class to provide basic properties of an object in Stud.IP
 //
@@ -31,7 +31,7 @@ define("ERROR_CRITICAL", "8");
 
 
 /**
- * AuthorObject.class.php
+ * AuthorObject.php
  *
  * Class to provide basic properties of an object in Stud.IP
  *
@@ -136,4 +136,3 @@ class AuthorObject
         $class->resetErrors();
     }
 }
-
diff --git a/lib/classes/AutoInsert.php b/lib/classes/AutoInsert.php
index b2168cc..b5cc005 100644
--- a/lib/classes/AutoInsert.php
+++ b/lib/classes/AutoInsert.php
@@ -14,7 +14,7 @@
  */
 
 /**
- * AutoInsert.class.php
+ * AutoInsert.php
  * Provides functions required by StEP00216:
  * - Assign seminars for automatic registration of certain user types
  * - Maintenance of registration rules
diff --git a/lib/classes/Color.php b/lib/classes/Color.php
index a9b4506..dcd68f5 100644
--- a/lib/classes/Color.php
+++ b/lib/classes/Color.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * lib/classes/Color.class.php - class to mix colors and convert them between different types
+ * lib/classes/Color.php - class to mix colors and convert them between different types
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -367,4 +367,4 @@ class Color {
         return [$H, $S, $L];
     }
 
-}
\ No newline at end of file
+}
diff --git a/lib/classes/Config.php b/lib/classes/Config.php
index 642665d..c49a845 100644
--- a/lib/classes/Config.php
+++ b/lib/classes/Config.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * Config.class.php
+ * Config.php
  * provides access to global configuration
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/CourseConfig.php b/lib/classes/CourseConfig.php
index ad62be0..3ac5587 100644
--- a/lib/classes/CourseConfig.php
+++ b/lib/classes/CourseConfig.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * CourseConfig.class.php
+ * CourseConfig.php
  * provides access to course preferences
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/CronJob.php b/lib/classes/CronJob.php
index 1e7fb41..dee65e7 100644
--- a/lib/classes/CronJob.php
+++ b/lib/classes/CronJob.php
@@ -10,7 +10,7 @@
 
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// Cronjob.class.php
+// Cronjob.php
 //
 // Copyright (C) 2013 Jan-Hendrik Willms <tleilax+studip@gmail.com>
 // +---------------------------------------------------------------------------+
diff --git a/lib/classes/CronjobScheduler.php b/lib/classes/CronjobScheduler.php
index cc4cf8b..fbb5b66 100644
--- a/lib/classes/CronjobScheduler.php
+++ b/lib/classes/CronjobScheduler.php
@@ -10,7 +10,7 @@
 
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// CronjobScheduler.class.php
+// CronjobScheduler.php
 //
 // Copyright (C) 2013 Jan-Hendrik Willms <tleilax+studip@gmail.com>
 // +---------------------------------------------------------------------------+
diff --git a/lib/classes/DataFieldEntry.php b/lib/classes/DataFieldEntry.php
index fd50a0b..eca0b4a 100644
--- a/lib/classes/DataFieldEntry.php
+++ b/lib/classes/DataFieldEntry.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * DataFieldEntry.class.php
+ * DataFieldEntry.php
  *
  * @author  Jan-Hendrik Willms <tleilax+studip@gmail.com>
  * @author  Marcus Lunzenauer <mlunzena@uos.de>
diff --git a/lib/classes/DatabaseObject.php b/lib/classes/DatabaseObject.php
index 2258adb..5c54229 100644
--- a/lib/classes/DatabaseObject.php
+++ b/lib/classes/DatabaseObject.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +--------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// DatabaseObject.class.php
+// DatabaseObject.php
 //
 // Class to provide basic properties of an DatabseObject in Stud.IP
 //
@@ -35,7 +35,7 @@ define("INSTANCEOF_DATABASEOBJECT", "DatabaseObject");
 
 
 /**
- * DatabaseObject.class.php
+ * DatabaseObject.php
  *
  * Class to provide basic properties of an DatabaseObject in Stud.IP
  *
diff --git a/lib/classes/DateFormatter.php b/lib/classes/DateFormatter.php
index 5f7c558..5309cbc 100644
--- a/lib/classes/DateFormatter.php
+++ b/lib/classes/DateFormatter.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter010: TODO
 /**
- * DateFormater.class.php - Handles the formatting of one date and associated rooms.
+ * DateFormater.php - Handles the formatting of one date and associated rooms.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/lib/classes/DbSnapshot.php b/lib/classes/DbSnapshot.php
index dfb4f89..33ea660 100644
--- a/lib/classes/DbSnapshot.php
+++ b/lib/classes/DbSnapshot.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// DbSnapshot.class.php
+// DbSnapshot.php
 // Class to provide snapshots of mysql result sets
 // Uses PHPLib DB Abstraction
 // Copyright (c) 2002 André Noack <andre.noack@gmx.net>
diff --git a/lib/classes/DbView.php b/lib/classes/DbView.php
index 81e9b91..0215f8e 100644
--- a/lib/classes/DbView.php
+++ b/lib/classes/DbView.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// DbView.class.php
+// DbView.php
 // Class to provide simple Views and Prepared Statements
 // Mainly for MySql, may work with other DBs (not tested)
 // Copyright (c) 2002 André Noack <andre.noack@gmx.net>
diff --git a/lib/classes/InstituteCalendarHelper.php b/lib/classes/InstituteCalendarHelper.php
index 4302cf1..6c934b4 100644
--- a/lib/classes/InstituteCalendarHelper.php
+++ b/lib/classes/InstituteCalendarHelper.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * InstituteCalendarHelper.class.php - class for institute calendar convenience functions
+ * InstituteCalendarHelper.php - class for institute calendar convenience functions
  *
  * @author      Timo Hartge <hartge@data-quest>
  * @license     http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
diff --git a/lib/classes/InstituteConfig.php b/lib/classes/InstituteConfig.php
index d1a51cb..551ea4d 100644
--- a/lib/classes/InstituteConfig.php
+++ b/lib/classes/InstituteConfig.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * InstituteConfig.class.php
+ * InstituteConfig.php
  * provides access to institute preferences
  *
  * @author  Jan-Hendrik Wullms <tleilax+studip@gmail.com>
diff --git a/lib/classes/LockRules.php b/lib/classes/LockRules.php
index 59679db..f1feb9f 100644
--- a/lib/classes/LockRules.php
+++ b/lib/classes/LockRules.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * LockRules.class.php
+ * LockRules.php
  *
  *
  * This program is free software; you can redistribute it and/or
@@ -16,7 +16,7 @@
 */
 
 /**
-* LockRules.class.php
+* LockRules.php
 *
 * This class contains only static methods dealing with lock rules
 *
diff --git a/lib/classes/MVV.php b/lib/classes/MVV.php
index 517514c..b4d9edf 100644
--- a/lib/classes/MVV.php
+++ b/lib/classes/MVV.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * MVV.class.php
+ * MVV.php
  * Helper class
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/Markup.php b/lib/classes/Markup.php
index fbde67b..dc6820f 100644
--- a/lib/classes/Markup.php
+++ b/lib/classes/Markup.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * Markup.class.php - Handling of Stud.IP- and HTML-markup.
+ * Markup.php - Handling of Stud.IP- and HTML-markup.
  **
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/lib/classes/MessageBox.php b/lib/classes/MessageBox.php
index 8936ebe..3573018 100644
--- a/lib/classes/MessageBox.php
+++ b/lib/classes/MessageBox.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter010: TODO
 /**
- * MessageBox.class.php
+ * MessageBox.php
  *
  * html boxes for different kinds of messages
  *
diff --git a/lib/classes/ModulesNotification.php b/lib/classes/ModulesNotification.php
index f414071..1dc361c 100644
--- a/lib/classes/ModulesNotification.php
+++ b/lib/classes/ModulesNotification.php
@@ -4,7 +4,7 @@
 # Lifter003: TEST
 # Lifter010: DONE - no html output in this file
 /**
-* ModulesNotification.class.php
+* ModulesNotification.php
 *
 * check for modules (global and local for institutes and Veranstaltungen), read and write
 *
@@ -17,7 +17,7 @@
 
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// Modules.class.php
+// Modules.php
 // Checks fuer Module (global und lokal fuer Veranstaltungen und Einrichtungen), Schreib-/Lesezugriff
 // Copyright (C) 2003 Cornelis Kater <ckater@gwdg.de>, Suchi & Berg GmbH <info@data-quest.de>
 // +---------------------------------------------------------------------------+
diff --git a/lib/classes/MultiPersonSearch.php b/lib/classes/MultiPersonSearch.php
index af10e6b..3ca617b 100644
--- a/lib/classes/MultiPersonSearch.php
+++ b/lib/classes/MultiPersonSearch.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * MultiPersonSearch.class.php
+ * MultiPersonSearch.php
  *
  * This class provides a GUI-element for searching, adding and removing
  * multiple persons. If JavaScript is enabled the GUI-element is shown
@@ -242,7 +242,7 @@ class MultiPersonSearch {
     /**
      * sets the search object.
      *
-     * @param SearchType object of type SearchType (e.g. SQLSearch.class.php)
+     * @param SearchType object of type SearchType (e.g. SQLSearch.php)
      *
      * @return MultiPersonSearch
      */
diff --git a/lib/classes/MvvQuickSearch.php b/lib/classes/MvvQuickSearch.php
index b0e79c0..b06de4f 100644
--- a/lib/classes/MvvQuickSearch.php
+++ b/lib/classes/MvvQuickSearch.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once 'lib/classes/searchtypes/SQLSearch.class.php';
+require_once 'lib/classes/searchtypes/SQLSearch.php';
 
 class MvvQuickSearch extends SQLSearch
 {
diff --git a/lib/classes/NotificationCenter.php b/lib/classes/NotificationCenter.php
index aaaa9e8..178fd62 100644
--- a/lib/classes/NotificationCenter.php
+++ b/lib/classes/NotificationCenter.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter010: TODO
 /*
- * NotificationCenter.class.php - NotificationCenter class
+ * NotificationCenter.php - NotificationCenter class
  *
  * Copyright (c) 2009  Elmar Ludwig
  *
diff --git a/lib/classes/QuickSearch.php b/lib/classes/QuickSearch.php
index d3983a3..f3e18cc 100644
--- a/lib/classes/QuickSearch.php
+++ b/lib/classes/QuickSearch.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter010: TODO
 /**
- * QuickSearch.class.php - GUI class for quciksearch
+ * QuickSearch.php - GUI class for quciksearch
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -66,7 +66,7 @@
  *  $searcher = new TeacherSearch();
  *  print QuickSearch::get("username", $searcher)->withButton->render();
  *  //code-end
- * Watch the SearchType class in lib/classes/searchtypes/SearchType.class.php
+ * Watch the SearchType class in lib/classes/searchtypes/SearchType.php
  * for details.
  * Enjoy!
  */
@@ -166,7 +166,7 @@ class QuickSearch
     /**
      * constructor which prepares a searchfield for persons, courses, institutes or
      * special items you may want to search for. This is a GUI-class, see
-     * QuickSearch.class.php for further documentation.
+     * QuickSearch.php for further documentation.
      *
      * @param string $name the name of the destinated variable in your html-form. Handle it
      * as if it was an '<input type="text" name="yourname">' input.
diff --git a/lib/classes/RangeConfig.php b/lib/classes/RangeConfig.php
index b1030e3..ad48207 100644
--- a/lib/classes/RangeConfig.php
+++ b/lib/classes/RangeConfig.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * RangeConfig.class.php
+ * RangeConfig.php
  * provides access to object preferences
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/RangeTreeObject.php b/lib/classes/RangeTreeObject.php
index 579db43..06f84bf 100644
--- a/lib/classes/RangeTreeObject.php
+++ b/lib/classes/RangeTreeObject.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// RangeTreeObject.class.php
+// RangeTreeObject.php
 // Class to handle items in the "range tree"
 //
 // Copyright (c) 2002 André Noack <noack@data-quest.de>
diff --git a/lib/classes/RangeTreeObjectFak.php b/lib/classes/RangeTreeObjectFak.php
index 76cc366..9e980ca 100644
--- a/lib/classes/RangeTreeObjectFak.php
+++ b/lib/classes/RangeTreeObjectFak.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// RangeTreeObjectFak.class.php
+// RangeTreeObjectFak.php
 // Class to handle items in the "range tree"
 // 
 // Copyright (c) 2002 André Noack <noack@data-quest.de> 
diff --git a/lib/classes/RangeTreeObjectInst.php b/lib/classes/RangeTreeObjectInst.php
index c291dfc..d41b03d 100644
--- a/lib/classes/RangeTreeObjectInst.php
+++ b/lib/classes/RangeTreeObjectInst.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// RangeTreeObjectInst.class.php
+// RangeTreeObjectInst.php
 // Class to handle items in the "range tree"
 //
 // Copyright (c) 2002 André Noack <noack@data-quest.de>
diff --git a/lib/classes/Score.php b/lib/classes/Score.php
index 4d114d5..3b7f149 100644
--- a/lib/classes/Score.php
+++ b/lib/classes/Score.php
@@ -1,6 +1,6 @@
 <?
 /**
- * Score.class.php - Score class
+ * Score.php - Score class
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/lib/classes/Seminar.php b/lib/classes/Seminar.php
index a2d69ea..0fccdbc 100644
--- a/lib/classes/Seminar.php
+++ b/lib/classes/Seminar.php
@@ -4,7 +4,7 @@
 # Lifter007: TODO
 # Lifter010: TODO
 /**
- * Seminar.class.php - This class represents a Seminar in Stud.IP
+ * Seminar.php - This class represents a Seminar in Stud.IP
  *
  * This class provides functions for seminar-members, seminar-dates, and seminar-modules
  *
diff --git a/lib/classes/SeminarCategories.php b/lib/classes/SeminarCategories.php
index 5302f1e..25eb4c1 100644
--- a/lib/classes/SeminarCategories.php
+++ b/lib/classes/SeminarCategories.php
@@ -3,7 +3,7 @@
 # Lifter003: TODO
 # Lifter010: TODO
 /**
- * SeminarCategories.class.php
+ * SeminarCategories.php
  *
  * encapsulates configuration settings for courses from config.inc.php
  * aka $SEM_CLASS, $SEM_TYPE, $UPLOAD_TYPES
@@ -14,7 +14,7 @@
  */
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// SeminarCategories.class.php
+// SeminarCategories.php
 //
 // Copyright (C) 2008 André Noack <noack@data-quest>, data-quest GmbH <info@data-quest.de>
 // +---------------------------------------------------------------------------+
diff --git a/lib/classes/SessionDecoder.php b/lib/classes/SessionDecoder.php
index d437494..fc40c07 100644
--- a/lib/classes/SessionDecoder.php
+++ b/lib/classes/SessionDecoder.php
@@ -3,7 +3,7 @@
 # Lifter003: TODO
 # Lifter010: TODO
 /**
- * SessionDecoder.class.php
+ * SessionDecoder.php
  *
  * decodes serialized PHP session data
  *
@@ -13,7 +13,7 @@
  */
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// SessionDecoder.class.php
+// SessionDecoder.php
 //
 // Copyright (C) 2008 André Noack <noack@data-quest>, data-quest GmbH <info@data-quest.de>
 // +---------------------------------------------------------------------------+
diff --git a/lib/classes/SimpleCollection.php b/lib/classes/SimpleCollection.php
index 6acc10d..ae773f5 100644
--- a/lib/classes/SimpleCollection.php
+++ b/lib/classes/SimpleCollection.php
@@ -7,7 +7,7 @@ if (!defined('SORT_FLAG_CASE')) {
 }
 
 /**
- * SimpleCollection.class.php
+ * SimpleCollection.php
  * collection of assoc arrays with convenience
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/SimpleORMap.php b/lib/classes/SimpleORMap.php
index 7124cc4..7492906 100644
--- a/lib/classes/SimpleORMap.php
+++ b/lib/classes/SimpleORMap.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * SimpleORMap.class.php
+ * SimpleORMap.php
  * simple object-relational mapping
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/SimpleORMapCollection.php b/lib/classes/SimpleORMapCollection.php
index 7debb80..20162e5 100644
--- a/lib/classes/SimpleORMapCollection.php
+++ b/lib/classes/SimpleORMapCollection.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * SimpleORMapCollection.class.php
+ * SimpleORMapCollection.php
  * simple object-relational mapping
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/StudipAutoloader.php b/lib/classes/StudipAutoloader.php
index 7054478..883adc7 100644
--- a/lib/classes/StudipAutoloader.php
+++ b/lib/classes/StudipAutoloader.php
@@ -52,8 +52,8 @@ class StudipAutoloader
     // file is found quickly and unneccessary, costly calls to file_exists()
     // can be avoided.
     protected static $file_extensions = [
-        '.class.php',
         '.php',
+        '.class.php',
         '.interface.php',
     ];
 
diff --git a/lib/classes/StudipForm.php b/lib/classes/StudipForm.php
index 024e2e3..12029df 100644
--- a/lib/classes/StudipForm.php
+++ b/lib/classes/StudipForm.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipForm.class.php
+// StudipForm.php
 // Class to build HTML formular and handle persistence using PhpLib
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipLock.php b/lib/classes/StudipLock.php
index 601db8b..ce5752f 100644
--- a/lib/classes/StudipLock.php
+++ b/lib/classes/StudipLock.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * StudipLock.class.php
+ * StudipLock.php
  * class with methods to perform cooperative advisory locking
  * using the GET_LOCK feature from Mysql
  * https://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#function_get-lock
diff --git a/lib/classes/StudipMail.php b/lib/classes/StudipMail.php
index 4974f66..c517847 100644
--- a/lib/classes/StudipMail.php
+++ b/lib/classes/StudipMail.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * StudipMail.class.php
+ * StudipMail.php
  *
  * class for constructing and sending emails in Stud.IP
  *
diff --git a/lib/classes/StudipObject.php b/lib/classes/StudipObject.php
index 151fcdb..5f10c86 100644
--- a/lib/classes/StudipObject.php
+++ b/lib/classes/StudipObject.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +--------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipObject.class.php
+// StudipObject.php
 //
 // Class to provide basic properties of an StudipObject in Stud.IP
 //
@@ -36,7 +36,7 @@ define ("INSTANCEOF_STUDIPOBJECT", "StudipObject");
 
 
 /**
- * StudipObject.class.php
+ * StudipObject.php
  *
  * Class to provide basic properties of an StudipObject in Stud.IP
  *
diff --git a/lib/classes/StudipPDO.php b/lib/classes/StudipPDO.php
index 8a1422b..77046f7 100644
--- a/lib/classes/StudipPDO.php
+++ b/lib/classes/StudipPDO.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * StudipPDO.class.php - Stud.IP PDO class
+ * StudipPDO.php - Stud.IP PDO class
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/lib/classes/StudipRangeTree.php b/lib/classes/StudipRangeTree.php
index cf88d23..5e1aefe 100644
--- a/lib/classes/StudipRangeTree.php
+++ b/lib/classes/StudipRangeTree.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipRangeTree.class.php
+// StudipRangeTree.php
 // Class to handle structure of the "range tree"
 //
 // Copyright (c) 2002 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipRangeTreeView.php b/lib/classes/StudipRangeTreeView.php
index 2532e4b..7b23089 100644
--- a/lib/classes/StudipRangeTreeView.php
+++ b/lib/classes/StudipRangeTreeView.php
@@ -6,7 +6,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipRangeTreeView.class.php
+// StudipRangeTreeView.php
 // Class to print out the "range tree"
 //
 // Copyright (c) 2002 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipRangeTreeViewAdmin.php b/lib/classes/StudipRangeTreeViewAdmin.php
index 0620957..1c5e5a1 100644
--- a/lib/classes/StudipRangeTreeViewAdmin.php
+++ b/lib/classes/StudipRangeTreeViewAdmin.php
@@ -6,7 +6,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipRangeTreeViewAdmin.class.php
+// StudipRangeTreeViewAdmin.php
 // Class to print out the "range tree"
 //
 // Copyright (c) 2002 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipSemRangeTreeViewSimple.php b/lib/classes/StudipSemRangeTreeViewSimple.php
index eecdd70..78b5ccf 100644
--- a/lib/classes/StudipSemRangeTreeViewSimple.php
+++ b/lib/classes/StudipSemRangeTreeViewSimple.php
@@ -6,7 +6,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipSemRangeTreeViewSimple.class.php
+// StudipSemRangeTreeViewSimple.php
 // Class to print out the seminar tree
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipSemSearch.php b/lib/classes/StudipSemSearch.php
index 8932dd1..6d86b44 100644
--- a/lib/classes/StudipSemSearch.php
+++ b/lib/classes/StudipSemSearch.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipSemSearchForm.class.php
+// StudipSemSearchForm.php
 // Class to build search formular and execute search
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipSemSearchHelper.php b/lib/classes/StudipSemSearchHelper.php
index 29ee5d3..d221869 100644
--- a/lib/classes/StudipSemSearchHelper.php
+++ b/lib/classes/StudipSemSearchHelper.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipSemSearchHelper.class.php
+// StudipSemSearchHelper.php
 //
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipSemTreeSearch.php b/lib/classes/StudipSemTreeSearch.php
index e79a34f..0d8f935 100644
--- a/lib/classes/StudipSemTreeSearch.php
+++ b/lib/classes/StudipSemTreeSearch.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipSemTreeSearch.class.php
+// StudipSemTreeSearch.php
 // Class to build search formular and execute search
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipSemTreeView.php b/lib/classes/StudipSemTreeView.php
index 3e984cc..f2d6fbe 100644
--- a/lib/classes/StudipSemTreeView.php
+++ b/lib/classes/StudipSemTreeView.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipSemTreeView.class.php
+// StudipSemTreeView.php
 // Class to print out the seminar tree
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipSemTreeViewAdmin.php b/lib/classes/StudipSemTreeViewAdmin.php
index edc65c8..59c926a 100644
--- a/lib/classes/StudipSemTreeViewAdmin.php
+++ b/lib/classes/StudipSemTreeViewAdmin.php
@@ -7,7 +7,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipSemTreeViewAdmin.class.php
+// StudipSemTreeViewAdmin.php
 // Class to print out the seminar tree in administration mode
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/StudipSemTreeViewSimple.php b/lib/classes/StudipSemTreeViewSimple.php
index e2dba76..239275b 100644
--- a/lib/classes/StudipSemTreeViewSimple.php
+++ b/lib/classes/StudipSemTreeViewSimple.php
@@ -6,7 +6,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipSemTreeViewSimple.class.php
+// StudipSemTreeViewSimple.php
 // Class to print out the seminar tree
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/TreeAbstract.php b/lib/classes/TreeAbstract.php
index ccdb6e1..a1413b3 100644
--- a/lib/classes/TreeAbstract.php
+++ b/lib/classes/TreeAbstract.php
@@ -5,7 +5,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// TreeAbstract.class.php
+// TreeAbstract.php
 // Abstract Base Class to handle in-memory tree structures
 //
 // Copyright (c) 2002 André Noack <noack@data-quest.de>
diff --git a/lib/classes/TreeView.php b/lib/classes/TreeView.php
index 243a9b9..0bc2810 100644
--- a/lib/classes/TreeView.php
+++ b/lib/classes/TreeView.php
@@ -5,8 +5,8 @@
 
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// TreeView.class.php
-// Class to print out html represantation of a tree object based on TreeAbstract.class.php
+// TreeView.php
+// Class to print out html represantation of a tree object based on TreeAbstract.php
 //
 // Copyright (c) 2002 André Noack <noack@data-quest.de>
 // Suchi & Berg GmbH <info@data-quest.de>
@@ -26,9 +26,7 @@
 // +---------------------------------------------------------------------------+
 
 /**
-* Class to print out html represantation of a tree object based on TreeAbstract.class.php
-*
-* Class to print out html represantation of a tree object based on TreeAbstract.class.php
+* Class to print out html represantation of a tree object based on TreeAbstract.php
 *
 * @access   public
 * @author   André Noack <noack@data-quest.de>
diff --git a/lib/classes/UserConfig.php b/lib/classes/UserConfig.php
index 4cb1ff6..413d4c8 100644
--- a/lib/classes/UserConfig.php
+++ b/lib/classes/UserConfig.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * UserConfig.class.php
+ * UserConfig.php
  * provides access to user preferences
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/UserLookup.php b/lib/classes/UserLookup.php
index bdd9fc3..62de8fd 100644
--- a/lib/classes/UserLookup.php
+++ b/lib/classes/UserLookup.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * UserLookup.class.php
+ * UserLookup.php
  *
  * provides an easy way to look up user ids by certain filter criteria
  *
diff --git a/lib/classes/UserManagement.php b/lib/classes/UserManagement.php
index 015e6cd..4bd47ec 100644
--- a/lib/classes/UserManagement.php
+++ b/lib/classes/UserManagement.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter007: TODO
 /**
- * UserManagement.class.php
+ * UserManagement.php
  *
  * Management for the Stud.IP global users
  *
@@ -25,7 +25,7 @@ require_once 'lib/messaging.inc.php';   // remove messages send or recieved by u
 require_once 'lib/object.inc.php';
 
 /**
- * UserManagement.class.php
+ * UserManagement.php
  *
  * Management for the Stud.IP global users
  *
diff --git a/lib/classes/admission/AdmissionAlgorithm.php b/lib/classes/admission/AdmissionAlgorithm.php
index 7e9df92..fae1061 100644
--- a/lib/classes/admission/AdmissionAlgorithm.php
+++ b/lib/classes/admission/AdmissionAlgorithm.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * AdmissionAlgorithm.class.php
+ * AdmissionAlgorithm.php
  * 
  * Abstract class for seminar seat distribution. A concrete algorithm 
  * needs to be implemented.
@@ -32,4 +32,4 @@ abstract class AdmissionAlgorithm
 
 } /* end of class AdmissionAlgorithm */
 
-?>
\ No newline at end of file
+?>
diff --git a/lib/classes/admission/AdmissionPriority.php b/lib/classes/admission/AdmissionPriority.php
index 47e1564..22d426e 100644
--- a/lib/classes/admission/AdmissionPriority.php
+++ b/lib/classes/admission/AdmissionPriority.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * AdmissionPriority.class.php
+ * AdmissionPriority.php
  *
  * This class represents priorities a user has given to a set of courses.
  * No instance is needed, all methods are designed to be called statically.
diff --git a/lib/classes/admission/AdmissionRule.php b/lib/classes/admission/AdmissionRule.php
index fe5e5bb..2b826e4 100644
--- a/lib/classes/admission/AdmissionRule.php
+++ b/lib/classes/admission/AdmissionRule.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * AdmissionRule.class.php
+ * AdmissionRule.php
  *
  * An abstract representation of rules for course admission.
  *
diff --git a/lib/classes/admission/AdmissionUserList.php b/lib/classes/admission/AdmissionUserList.php
index 570bc62..3e5a430 100644
--- a/lib/classes/admission/AdmissionUserList.php
+++ b/lib/classes/admission/AdmissionUserList.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * AdmissionUserList.class.php
+ * AdmissionUserList.php
  *
  * Contains users that get different probabilities than others in seat
  * distribution algorithm.
diff --git a/lib/classes/admission/CourseSet.php b/lib/classes/admission/CourseSet.php
index d94bc05..cf87667 100644
--- a/lib/classes/admission/CourseSet.php
+++ b/lib/classes/admission/CourseSet.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * CourseSet.class.php
+ * CourseSet.php
  *
  * Represents groups of Stud.IP courses that have common rules for admission.
  *
diff --git a/lib/classes/admission/RandomAlgorithm.php b/lib/classes/admission/RandomAlgorithm.php
index 54d44d7..4666f59 100644
--- a/lib/classes/admission/RandomAlgorithm.php
+++ b/lib/classes/admission/RandomAlgorithm.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * RandomAlgorithm.class.php - Standard seat distribution algorithm
+ * RandomAlgorithm.php - Standard seat distribution algorithm
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/lib/classes/admission/UserFilter.php b/lib/classes/admission/UserFilter.php
index d380ef0..692422f 100644
--- a/lib/classes/admission/UserFilter.php
+++ b/lib/classes/admission/UserFilter.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * UserFilter.class.php
+ * UserFilter.php
  *
  * Conditions for user selection in Stud.IP. A condition is a collection of
  * condition fields, e.g. degree, course of study or semester. Each
diff --git a/lib/classes/admission/UserFilterField.php b/lib/classes/admission/UserFilterField.php
index 9081e90..4b51322 100644
--- a/lib/classes/admission/UserFilterField.php
+++ b/lib/classes/admission/UserFilterField.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * UserFilterField.class.php
+ * UserFilterField.php
  *
  * A specification of a Stud.IP condition that must be fulfilled. One
  * or more instances of the UserFilterField subclasses make up a
@@ -197,11 +197,10 @@ class UserFilterField
         if (self::$available_filter_fields === null) {
         $fields = [];
         // Load all PHP class files found in the condition field folder.
-        foreach (glob(realpath(dirname(__FILE__).'/userfilter').'/*.class.php') as $file) {
+        foreach (glob(realpath(dirname(__FILE__).'/userfilter').'/*.php') as $file) {
             require_once($file);
             // Try to auto-calculate class name from file name.
-            $className = mb_substr(basename($file), 0,
-                mb_strpos(basename($file), '.class.php'));
+            $className = mb_substr(basename($file), 0, mb_strpos(basename($file), '.php'));
             // Check if class is right.
             if (is_subclass_of($className, 'UserFilterField')) {
                 if ($className::$isParameterized) {
diff --git a/lib/classes/admission/userfilter/DatafieldCondition.php b/lib/classes/admission/userfilter/DatafieldCondition.php
index 966fe8e..1bc93e8 100644
--- a/lib/classes/admission/userfilter/DatafieldCondition.php
+++ b/lib/classes/admission/userfilter/DatafieldCondition.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * DatafieldCondition.class.php
+ * DatafieldCondition.php
  *
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/admission/userfilter/DegreeCondition.php b/lib/classes/admission/userfilter/DegreeCondition.php
index 9180e2d..61ce456 100644
--- a/lib/classes/admission/userfilter/DegreeCondition.php
+++ b/lib/classes/admission/userfilter/DegreeCondition.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * DegreeCondition.class.php
+ * DegreeCondition.php
  *
  * All conditions concerning the study degree in Stud.IP can be specified here.
  *
diff --git a/lib/classes/admission/userfilter/PermissionCondition.php b/lib/classes/admission/userfilter/PermissionCondition.php
index 4adfdbf..fe9458c 100644
--- a/lib/classes/admission/userfilter/PermissionCondition.php
+++ b/lib/classes/admission/userfilter/PermissionCondition.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * PermissionCondition.class.php
+ * PermissionCondition.php
  *
  * All conditions concerning the semester of study in Stud.IP can be specified here.
  *
diff --git a/lib/classes/admission/userfilter/SemesterOfStudyCondition.php b/lib/classes/admission/userfilter/SemesterOfStudyCondition.php
index 2c1233a..5794f75 100644
--- a/lib/classes/admission/userfilter/SemesterOfStudyCondition.php
+++ b/lib/classes/admission/userfilter/SemesterOfStudyCondition.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * SemesterOfStudyCondition.class.php
+ * SemesterOfStudyCondition.php
  *
  * All conditions concerning the semester of study in Stud.IP can be specified here.
  *
diff --git a/lib/classes/admission/userfilter/StgteilVersionCondition.php b/lib/classes/admission/userfilter/StgteilVersionCondition.php
index f6348e5..ec5c1f3 100644
--- a/lib/classes/admission/userfilter/StgteilVersionCondition.php
+++ b/lib/classes/admission/userfilter/StgteilVersionCondition.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * StgteilVersionCondition.class.php
+ * StgteilVersionCondition.php
  *
  * All conditions concerning the Studiengangteil-Versionen in Stud.IP can be specified here.
  *
diff --git a/lib/classes/admission/userfilter/SubjectCondition.php b/lib/classes/admission/userfilter/SubjectCondition.php
index ab44d49..7aa5f26 100644
--- a/lib/classes/admission/userfilter/SubjectCondition.php
+++ b/lib/classes/admission/userfilter/SubjectCondition.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * SubjectCondition.class.php
+ * SubjectCondition.php
  *
  * All conditions concerning the study subject in Stud.IP can be specified here.
  *
diff --git a/lib/classes/admission/userfilter/SubjectConditionAny.php b/lib/classes/admission/userfilter/SubjectConditionAny.php
index 107c86c..3a3712b 100644
--- a/lib/classes/admission/userfilter/SubjectConditionAny.php
+++ b/lib/classes/admission/userfilter/SubjectConditionAny.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * SubjectConditionAny.class.php
+ * SubjectConditionAny.php
  *
  * All conditions concerning the study subject in Stud.IP can be specified here.
  *
@@ -14,7 +14,7 @@
  * @category    Stud.IP
  */
 
-require_once realpath(__DIR__ . '/..') . '/UserFilterField.class.php';
+require_once realpath(__DIR__ . '/..') . '/UserFilterField.php';
 
 class SubjectConditionAny extends UserFilterField
 {
diff --git a/lib/classes/auth_plugins/StudipAuthAbstract.php b/lib/classes/auth_plugins/StudipAuthAbstract.php
index 36c75df..19d5afa 100644
--- a/lib/classes/auth_plugins/StudipAuthAbstract.php
+++ b/lib/classes/auth_plugins/StudipAuthAbstract.php
@@ -1,7 +1,7 @@
 <?php
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipAuthAbstract.class.php
+// StudipAuthAbstract.php
 // Abstract class, used as a template for authentication plugins
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/auth_plugins/StudipAuthIP.php b/lib/classes/auth_plugins/StudipAuthIP.php
index e0d6afa..dd42a28 100644
--- a/lib/classes/auth_plugins/StudipAuthIP.php
+++ b/lib/classes/auth_plugins/StudipAuthIP.php
@@ -1,6 +1,6 @@
 <?php
 /*
- * StudipAuthIP.class.php - Stud.IP authentication with user ip
+ * StudipAuthIP.php - Stud.IP authentication with user ip
  * Copyright (c) 2014  Florian Bieringer, Uni Passau
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/auth_plugins/StudipAuthLTI.php b/lib/classes/auth_plugins/StudipAuthLTI.php
index 07ab8c3..d5a2863 100644
--- a/lib/classes/auth_plugins/StudipAuthLTI.php
+++ b/lib/classes/auth_plugins/StudipAuthLTI.php
@@ -1,6 +1,6 @@
 <?php
 /*
- * StudipAuthLTI.class.php - Stud.IP authentication against LTI 1.1 consumer
+ * StudipAuthLTI.php - Stud.IP authentication against LTI 1.1 consumer
  * Copyright (c) 2018  Elmar Ludwig
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/auth_plugins/StudipAuthLdap.php b/lib/classes/auth_plugins/StudipAuthLdap.php
index 7cb8686..6bbd3fd 100644
--- a/lib/classes/auth_plugins/StudipAuthLdap.php
+++ b/lib/classes/auth_plugins/StudipAuthLdap.php
@@ -1,7 +1,7 @@
 <?php
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipAuthLdap.class.php
+// StudipAuthLdap.php
 // Stud.IP authentication against LDAP Server
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/auth_plugins/StudipAuthLdapReadAndBind.php b/lib/classes/auth_plugins/StudipAuthLdapReadAndBind.php
index 742f0cb..3acb1d8 100644
--- a/lib/classes/auth_plugins/StudipAuthLdapReadAndBind.php
+++ b/lib/classes/auth_plugins/StudipAuthLdapReadAndBind.php
@@ -4,7 +4,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipAuthLdapReadAndBind.class.php
+// StudipAuthLdapReadAndBind.php
 // Stud.IP authentication against LDAP Server using read-only account and
 // user bind
 //
diff --git a/lib/classes/auth_plugins/StudipAuthOIDC.php b/lib/classes/auth_plugins/StudipAuthOIDC.php
index adfe9c9..b26c17b 100644
--- a/lib/classes/auth_plugins/StudipAuthOIDC.php
+++ b/lib/classes/auth_plugins/StudipAuthOIDC.php
@@ -1,6 +1,6 @@
 <?php
 /*
- * StudipAuthOpenID.class.php - Stud.IP authentication using OpenID Connect
+ * StudipAuthOpenID.php - Stud.IP authentication using OpenID Connect
  * Copyright (c) 2021  André Noack <noack@data-quest.de>
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/auth_plugins/StudipAuthSSO.php b/lib/classes/auth_plugins/StudipAuthSSO.php
index 752fa59..dd6af11 100644
--- a/lib/classes/auth_plugins/StudipAuthSSO.php
+++ b/lib/classes/auth_plugins/StudipAuthSSO.php
@@ -3,7 +3,7 @@
 # Lifter003: TODO
 # Lifter010: TODO
 /*
- * StudipAuthSSO.class.php - abstract base class for SSO auth plugins
+ * StudipAuthSSO.php - abstract base class for SSO auth plugins
  * Copyright (c) 2007  Elmar Ludwig, Universitaet Osnabrueck
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/auth_plugins/StudipAuthShib.php b/lib/classes/auth_plugins/StudipAuthShib.php
index 3eedc65..135b3f6 100644
--- a/lib/classes/auth_plugins/StudipAuthShib.php
+++ b/lib/classes/auth_plugins/StudipAuthShib.php
@@ -3,7 +3,7 @@
 # Lifter003: TODO
 # Lifter010: TODO
 /*
- * StudipAuthShib.class.php - Stud.IP authentication against Shibboleth server
+ * StudipAuthShib.php - Stud.IP authentication against Shibboleth server
  * Copyright (c) 2007  Elmar Ludwig, Universitaet Osnabrueck
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/auth_plugins/StudipAuthStandard.php b/lib/classes/auth_plugins/StudipAuthStandard.php
index 5bb3e65..927a13c 100644
--- a/lib/classes/auth_plugins/StudipAuthStandard.php
+++ b/lib/classes/auth_plugins/StudipAuthStandard.php
@@ -4,7 +4,7 @@
 # Lifter010: TODO
 // +---------------------------------------------------------------------------+
 // This file is part of Stud.IP
-// StudipAuthStandard.class.php
+// StudipAuthStandard.php
 // Basic Stud.IP authentication, using the Stud.IP database
 //
 // Copyright (c) 2003 André Noack <noack@data-quest.de>
diff --git a/lib/classes/cache/Exception.php b/lib/classes/cache/Exception.php
index 64ee364..061d090 100644
--- a/lib/classes/cache/Exception.php
+++ b/lib/classes/cache/Exception.php
@@ -1,6 +1,6 @@
 <?php
 /*
- * CacheException.class.php
+ * CacheException.php
  * This file is part of Stud.IP.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/cache/InvalidCacheArgumentException.php b/lib/classes/cache/InvalidCacheArgumentException.php
index e85c6b2..a201cad 100644
--- a/lib/classes/cache/InvalidCacheArgumentException.php
+++ b/lib/classes/cache/InvalidCacheArgumentException.php
@@ -1,6 +1,6 @@
 <?php
 /*
- * CacheException.class.php
+ * CacheException.php
  * This file is part of Stud.IP.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/cache/Item.php b/lib/classes/cache/Item.php
index 4e83d4d..99a6df8 100644
--- a/lib/classes/cache/Item.php
+++ b/lib/classes/cache/Item.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * Item.class.php
+ * Item.php
  * This file is part of Stud.IP.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/calendar/ICalendarExport.php b/lib/classes/calendar/ICalendarExport.php
index 00147ef..d8d1af7 100644
--- a/lib/classes/calendar/ICalendarExport.php
+++ b/lib/classes/calendar/ICalendarExport.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * ICalendarExport.class.php
+ * ICalendarExport.php
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/lib/classes/coursewizardsteps/LVGroupsWizardStep.php b/lib/classes/coursewizardsteps/LVGroupsWizardStep.php
index e79e1bd..c651714 100644
--- a/lib/classes/coursewizardsteps/LVGroupsWizardStep.php
+++ b/lib/classes/coursewizardsteps/LVGroupsWizardStep.php
@@ -13,7 +13,7 @@
  * @category    Stud.IP
  */
 
-require_once dirname(__FILE__) . '/../StudipLvgruppeSelection.class.php';
+require_once dirname(__FILE__) . '/../StudipLvgruppeSelection.php';
 
 class LVGroupsWizardStep implements CourseWizardStep
 {
diff --git a/lib/classes/exportdocument/ExportPDF.php b/lib/classes/exportdocument/ExportPDF.php
index 915cfde..f676c45 100644
--- a/lib/classes/exportdocument/ExportPDF.php
+++ b/lib/classes/exportdocument/ExportPDF.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter010: TODO
 /**
- * ExportPDF.class.php - create and export or save a pdf with simple HTML-Data
+ * ExportPDF.php - create and export or save a pdf with simple HTML-Data
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/lib/classes/searchtypes/MyCoursesSearch.php b/lib/classes/searchtypes/MyCoursesSearch.php
index 64bee64..1bdb250 100644
--- a/lib/classes/searchtypes/MyCoursesSearch.php
+++ b/lib/classes/searchtypes/MyCoursesSearch.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * MyCoursesSearch.class.php
+ * MyCoursesSearch.php
  * Search only in own courses.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/searchtypes/PermissionSearch.php b/lib/classes/searchtypes/PermissionSearch.php
index cc4ce3e..3f86271 100644
--- a/lib/classes/searchtypes/PermissionSearch.php
+++ b/lib/classes/searchtypes/PermissionSearch.php
@@ -12,7 +12,7 @@
 
 /**
  * Class of type SearchType used for searches with QuickSearch
- * (lib/classes/QuickSearch.class.php). You can search for people with a given
+ * (lib/classes/QuickSearch.php). You can search for people with a given
  * Stud.IP permission level, either globally or at an institute.
  *
  * @author Thomas Hackl
diff --git a/lib/classes/searchtypes/ResourceSearch.php b/lib/classes/searchtypes/ResourceSearch.php
index 24038a8..f664beb 100644
--- a/lib/classes/searchtypes/ResourceSearch.php
+++ b/lib/classes/searchtypes/ResourceSearch.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * ResourceSearch.class.php - A search type for resources.
+ * ResourceSearch.php - A search type for resources.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/lib/classes/searchtypes/RoomSearch.php b/lib/classes/searchtypes/RoomSearch.php
index 002712e..877c2cb 100644
--- a/lib/classes/searchtypes/RoomSearch.php
+++ b/lib/classes/searchtypes/RoomSearch.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * RoomSearch.class.php - A search type for rooms.
+ * RoomSearch.php - A search type for rooms.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/lib/classes/searchtypes/SQLSearch.php b/lib/classes/searchtypes/SQLSearch.php
index 86aff6d..de4efa3 100644
--- a/lib/classes/searchtypes/SQLSearch.php
+++ b/lib/classes/searchtypes/SQLSearch.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter010: TODO
 /**
- * SQLSearch.class.php - Class of type SearchType used for searches with QuickSearch
+ * SQLSearch.php - Class of type SearchType used for searches with QuickSearch
  *
  * Long description for file (if any)...
  *
@@ -17,7 +17,7 @@
 
 /**
  * Class of type SearchType used for searches with QuickSearch
- * (lib/classes/QuickSearch.class.php). You can search with a sql-syntax in the
+ * (lib/classes/QuickSearch.php). You can search with a sql-syntax in the
  * database. You just need to give in a query like for a PDB-prepare statement
  * and at least the variable ":input" in the query (the :input will be replaced
  * with the input of the QuickSearch userinput.
diff --git a/lib/classes/searchtypes/SearchType.php b/lib/classes/searchtypes/SearchType.php
index d46d57e..b4f9b68 100644
--- a/lib/classes/searchtypes/SearchType.php
+++ b/lib/classes/searchtypes/SearchType.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter010: TODO
 /**
- * SQLSearch.class.php - A class-structure for alle search-objects in Stud.IP.
+ * SQLSearch.php - A class-structure for alle search-objects in Stud.IP.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -104,4 +104,3 @@ abstract class SearchType
      */
     abstract public function includePath();
 }
-
diff --git a/lib/classes/searchtypes/SeminarSearch.php b/lib/classes/searchtypes/SeminarSearch.php
index e490228..fd7bf8a 100644
--- a/lib/classes/searchtypes/SeminarSearch.php
+++ b/lib/classes/searchtypes/SeminarSearch.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter010: TODO
 /**
- * SeminarSearch.class.php
+ * SeminarSearch.php
  * class to adapt StudipSemSearch to Quicksearch
  *
  * This program is free software; you can redistribute it and/or
diff --git a/lib/classes/searchtypes/StandardSearch.php b/lib/classes/searchtypes/StandardSearch.php
index 837a849..a3f0f3b 100644
--- a/lib/classes/searchtypes/StandardSearch.php
+++ b/lib/classes/searchtypes/StandardSearch.php
@@ -1,7 +1,7 @@
 <?php
 # Lifter010: TODO
 /**
- * StandardSearch.class.php - Class of type SearchType used for searches with QuickSearch
+ * StandardSearch.php - Class of type SearchType used for searches with QuickSearch
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -15,7 +15,7 @@
 
 /**
  * Class of type SearchType used for searches with QuickSearch
- * (lib/classes/QuickSearch.class.php). You can search with a sql-syntax in the
+ * (lib/classes/QuickSearch.php). You can search with a sql-syntax in the
  * database. You just need to give in a query like for a PDB-prepare statement
  * and at least the variable ":input" in the query (the :input will be replaced
  * with the input of the QuickSearch userinput.
diff --git a/lib/classes/searchtypes/TreeSearch.php b/lib/classes/searchtypes/TreeSearch.php
index 2fecf60..73d4239 100644
--- a/lib/classes/searchtypes/TreeSearch.php
+++ b/lib/classes/searchtypes/TreeSearch.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * TreeSearch.class.php - Class of type SearchType used for searches with QuickSearch
+ * TreeSearch.php - Class of type SearchType used for searches with QuickSearch
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as