* Removed the namespace parameter from Linker::makeExternalLink(), added a generic associative array of attributes instead. Let the Parser decide whether to use rel=nofollow.
$url and $alt parameters in makeExternalImage() are now normalized to be escaped on output instead of before they reach the function. This ensures that any hooks processing them won't accidentally send plaintext which might become an injection vector, or just get confused on pre-escaped input they didn't expect.
* Wrote a tool to check the integrity of the autoloader class list, fixed some issues that came up.
* Start the autoloader before LocalSettings.php, so that when an extension writer thinks an inefficient one-file special page extension is the way to go, they don't have to use explicit includes to make the class inheritance work. Should continue to work with $IP set in LocalSettings.php as long as $IP is set before extensions are included.
