Navigation has now been re-ordered in accordance with http://docs.moodle.org/en/Development:Navigation_2.0_structure.
This has led to several changes in the way in which navigation is generated included API changes, most notably using the
navigation_nodes add method now returns the newly added node rather than the key.
At the same time the global_navigation_tree block has been renamed to navigation and settings_navigation_tree to settings.

themes MDL-22108 Removed IE specific horizontal scroll bars from navigation and settings blocks. Thanks Patrick

Also make sure phpCAS doesn't try to start a new PHP session. We have already
started our own and want to keep it :). In addition to it, it emitted a PHP
notice that could block the authentication process under certain
configurations.

And pretty much the same with the wantsurl and loginguest checks.

MDL-22102 removing problematic readme files which were breaking my git checkout in phpstorm ide, they are not used and the whole wiki will be replaced soon anyway

Generated still manually. Fixes missing parentlanguage in langconfig.php
- there was a bug in AMOS due to intersection with English strings keys.
parentlanguage in langconfig is an exception as it may contain string
not defined in the English master pack.

themes MDL-22014 Reversal of YUI css property for input widths so that input size attribute is respected.

MDL-22015 improved get_string method - it can now fetch strings from any language, not just the current one

MDL-22085 adding iso-639-2 reference string to en lang pack - this way we may look up the corresponding code for each our translation, this may be very useful in exports/imports