Subscribe users with no course to a selected course see BT#9121
Merge branch '1.9.x' of ssh://github.com/chamilo/chamilo-lms into chamilo19
Adding script see BT#9128
Do not show _DELETED_ folders see BT#8852
Little fix to avoid warning - refs #7414
Fixing PHP warnings + formating code.
Minor - format code.
Adding COURSE_REQUEST_* constants.
Adding "detect_deleted_visible_documents.php" script.
Merge branch '1.9.x' of ssh://github.com/chamilo/chamilo-lms into chamilo19
Minor - format code.
Minor - format code.
Getting extra fields that have the filter option "on" in the user list

See BT#9078
Fixing upload + unzip see BT#8852
Minor - format code.
Do not show _DELETED_ files see BT#8852