Fixes broken composer autoloading

[rajiteh]

Composer's autoloader points to the wrong directory for autoloading with the current config.

<?php

// autoload_namespaces.php @generated by Composer

$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);

return array(
    'Jamm\\Memory' => array($vendorDir . '/jamm/memory/lib/Jamm/Memory'), 
    // must be like 'Jamm\\Memory' => array($vendorDir . '/jamm/memory/Jamm/Memory/lib'), 
);

The pull request will solve the compatibility issue by pointing to the correct folder.

Issue observed on composer version,

Composer version 1.0-dev (c291b07abde1d01323b07db06ab4227ff98c0191) 2015-02-23 22:41:42

[e-oz]

Thank you!