MDL-40429 - Libraries: Deprecate get_contextlevel_name() - Fix up unit test problem.
MDL-40430 - Libraries: Deprecate print_context_name().
MDL-40426 - Libraries: Deprecate mark_context_dirty().
MDL-40426 - Libraries: Deprecate mark_context_dirty() - Update

Fixed up a problem with a function in the deprecatelib.php file and
made an alteration to the upgrade.txt file.
MDL-40428 Libraries: Deprecated delete_context