Index by id again now that deletions are reflected in solr

src/Packagist/WebBundle/Command/IndexPackagesCommand.php

@@ -138,7 +138,7 @@ class IndexPackagesCommand extends ContainerAwareCommand
 
     private function updateDocumentFromPackage(\Solarium_Document_ReadWrite $document, Package $package)
     {
-        $document->setField('id', strtolower($package->getName()));
+        $document->setField('id', $package->getId());
         $document->setField('name', $package->getName());
         $document->setField('description', $package->getDescription());
         $document->setField('type', $package->getType());