Removing libraries from some scripts because they're already added in global.inc

main/exercice/exercise.lib.php

@@ -1248,11 +1248,9 @@ function get_all_exercises($course_info = null, $session_id = 0, $check_dates =
  */
 function get_exercise_result_ranking($my_score, $my_exe_id, $exercise_id, $course_code, $session_id = 0, $return_string = true) {
     if (empty($session_id)) {
-    	$session_id = 0;
-    	require_once api_get_path(LIBRARY_PATH).'usermanager.lib.php';
+    	$session_id = 0;    	
     	$user_list  = UserManager::get_user_list();
-    } else {
-        require_once api_get_path(LIBRARY_PATH).'sessionmanager.lib.php';
+    } else {        
         $user_list = SessionManager::get_users_by_session($session_id);        
     }
     //No score given we return 

main/exercice/exercise_show.php

@@ -68,7 +68,7 @@ if (empty($id)) {
 	api_not_allowed();
 }
 
-$is_allowedToEdit   = api_is_allowed_to_edit(null,true) || $is_courseTutor;
+$is_allowedToEdit    = api_is_allowed_to_edit(null,true) || $is_courseTutor || api_is_session_admin();
 
 //Getting results from the exe_id. This variable also contain all the information about the exercise
 $track_exercise_info = get_exercise_track_exercise_info($id);

main/exercice/question_pool.php

@@ -20,9 +20,8 @@ require_once 'exercise.lib.php';
 require_once 'question.class.php';
 require_once 'answer.class.php';
 require_once '../inc/global.inc.php';
-require_once api_get_path(LIBRARY_PATH).'sessionmanager.lib.php';
 
-$this_section=SECTION_COURSES;
+$this_section = SECTION_COURSES;
 
 $is_allowedToEdit=api_is_allowed_to_edit(null,true);
 

main/session/index.php

@@ -14,9 +14,7 @@ $cidReset = true;
 require_once '../inc/global.inc.php';
 $libpath = api_get_path(LIBRARY_PATH);
 
-require_once $libpath.'sessionmanager.lib.php';
 require_once $libpath.'formvalidator/FormValidator.class.php';
-require_once $libpath.'tracking.lib.php';
 
 require_once api_get_path(SYS_CODE_PATH).'newscorm/learnpathList.class.php';
 require_once api_get_path(SYS_CODE_PATH).'exercice/exercise.lib.php';

main/social/group_waiting_list.php

@@ -9,7 +9,7 @@
  */
 $cidReset = true;
 $language_file = array('userInfo');
-require '../inc/global.inc.php';
+require_once '../inc/global.inc.php';
 
 api_block_anonymous_users();
 if (api_get_setting('allow_social_tool') !='true') {

main/user/subscribe_user.php

@@ -22,8 +22,6 @@ if (!api_is_allowed_to_edit()) {
 }
 
 // including additional libraries
-require_once api_get_path(LIBRARY_PATH).'course.lib.php';
-require_once api_get_path(LIBRARY_PATH).'sessionmanager.lib.php';
 require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
 
 $tool_name = get_lang("SubscribeUserToCourse");