dirname() is a slow function compared with __DIR__ and using
'/../'. Moodle has a large number of legacy files that are included
each time a page loads and is not able to use an autoloader as it is
functional code. This allows those required includes to perform as
best as possible in this situation.
* Added a comment for the BOOK_NUM_* defines.
* Fixed broken redirects in tool/importhtml/index.php
* Fixed typo in book_preload_chapters [subchpaters => subchapters]
* Fixed copy paste docblock error in tool/print/locallib.php
* Removed the .gitignore file as Eloy had previously mentioned that.
Russell Smith