This Extension adds a PSR-0 Autoloader before the Magento Autoloader

To initialize a new namespace, insert following code in the <global/>-node of local.xml:

<psr0_namespaces>
    <NewNamespace />
</psr0_namespaces>

You can also use this Extension to add the composer Autoloader.

You need to configure the Path to your Vendor directory in your <global/>-node of local.xml:

<composer_vendor_path><![CDATA[{{root_dir}}/vendor]]></composer_vendor_path>

To disable the default magento autoloader, insert following code in the <global/>-node of local.xml:

<base_autoloader_disable>1</base_autoloader_disable>