TYPO3 Core

Remove the hurdle that class names in ext_autoload (the key part of the returned array) have to be lower cased.

The patch adds two tests, the first one tests that a case sensitive class name in ext_autoload.php in actually lowercases before it is written to the autoload cache file. It fails if the autoloader patch is not applied. The second tests that camel cased classes can be successfully autoloaded.