Display tasks in the calendar + improve settings

app/Locale/pl_PL/translations.php

@@ -808,7 +808,7 @@ return array(
     // 'Move the task to another column when assigned to a user' => '',
     // 'Move the task to another column when assignee is cleared' => '',
     // 'Source column' => '',
-    // 'Show subtask estimates in the user calendar' => '',
+    // 'Show subtask estimates (forecast of future work)' => '',
     // 'Transitions' => '',
     // 'Executer' => '',
     // 'Time spent in the column' => '',
@@ -908,4 +908,12 @@ return array(
     // 'Multi-user chat room' => '',
     // 'Help on Jabber integration' => '',
     // 'The server address must use this format: "tcp://hostname:5222"' => '',
+    // 'Calendar settings' => '',
+    // 'Project calendar view' => '',
+    // 'Project settings' => '',
+    // 'Show subtasks based on the time tracking' => '',
+    // 'Show tasks based on the creation date' => '',
+    // 'Show tasks based on the start date' => '',
+    // 'Subtasks time tracking' => '',
+    // 'User calendar view' => '',
 );