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.
This patch introduces two new blocks global_navigation_tree and settings_navigation_tree
both of which have been designed to make full use of the new navigation objects available through
the $PAGE object.
Bulk of this code is within lib/navigationlib.php
This was all in order to do MDL-19889!
* The old tabbed interface is gone.
* The manage feeds UI has been completely rewritten to be a few
separate sane scripts like managefeeds.php, editfeed.php and viewfeed.php
* This is used from both Admin -> plugins -> blocks ... and as a link from the block edit_form.php
* new edit_form.php for the block replacing config_istance.php.
* A lot of stuff to do with UI specific to this block has been removed from rsslib.php
Russell Smith