Refactoring and improvements of the accesslib.php library including prevention of access for not-logged-in users when forcelogin enabled, improved context caching, OOP refactoring of contexts, fixed context loading, deduplication of role definitions in user sessions, installation improvements, decoupling of enrolment checking from capability loading, added detection of deleted and non-existent users in has_capability(), new function accesslib test, auth and enrol upgrade notes.
More details are available in tracker subtasks.
* has course and status fields
* $PAGE->status updated by print_header and footer
* $PAGE->set_course now replace course_setup function
* global $PAGE created in setup.php
* unit tests for functionality so far
* Moodle still seems to work after this commit!