If ->allowcategorythemes is set, includes all parent categories too

pagetype

deprecate $PAGE->get_format_name (use $PAGE->pagetype)
deprecate page_id_and_class (use $PAGE->pagetype)

* 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!

MDL-18799 backup of file.php links - now using unicode modifiers if allowed in the server ; merged from 19_STABLE

MDL-18124 course creators can not delete any courses in their category any more, only those they created at most one day ago; merged from MOODLE_19_STABLE